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llvm / llvm-project / llvm / b72b4128f221fd5086a1ae46aba7b2fcbf0d6384 / . / test / Transforms / InstCombine / bswap-fold.ll
blob: a9061d3c95ce98e4b7e9ce8885014fd0c00a7877 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
; rdar://5992453
; A & 255
define i32 @test4(i32 %a) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: [[T2:%.*]] = and i32 [[A:%.*]], 255
; CHECK-NEXT: ret i32 [[T2]]
;
%t2 = call i32 @llvm.bswap.i32( i32 %a )
%t4 = lshr i32 %t2, 24
ret i32 %t4
}
; a >> 24
define i32 @test6(i32 %a) {
; CHECK-LABEL: @test6(
; CHECK-NEXT: [[T2:%.*]] = lshr i32 [[A:%.*]], 24
; CHECK-NEXT: ret i32 [[T2]]
;
%t2 = call i32 @llvm.bswap.i32( i32 %a )
%t4 = and i32 %t2, 255
ret i32 %t4
}
define i32 @lshr8_i32(i32 %x) {
; CHECK-LABEL: @lshr8_i32(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.bswap.i32(i32 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = shl i32 [[TMP1]], 8
; CHECK-NEXT: ret i32 [[R]]
;
%s = lshr i32 %x, 8
%r = call i32 @llvm.bswap.i32(i32 %s)
ret i32 %r
}
define <2 x i32> @lshr16_v2i32(<2 x i32> %x) {
; CHECK-LABEL: @lshr16_v2i32(
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = shl <2 x i32> [[TMP1]], <i32 16, i32 16>
; CHECK-NEXT: ret <2 x i32> [[R]]
;
%s = lshr <2 x i32> %x, <i32 16, i32 16>
%r = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %s)
ret <2 x i32> %r
}
define i32 @lshr24_i32(i32 %x) {
; CHECK-LABEL: @lshr24_i32(
; CHECK-NEXT: [[R:%.*]] = and i32 [[X:%.*]], -16777216
; CHECK-NEXT: ret i32 [[R]]
;
%s = lshr i32 %x, 24
%r = call i32 @llvm.bswap.i32(i32 %s)
ret i32 %r
}
; negative test - need shift-by-8-bit-multiple
define i32 @lshr12_i32(i32 %x) {
; CHECK-LABEL: @lshr12_i32(
; CHECK-NEXT: [[S:%.*]] = lshr i32 [[X:%.*]], 12
; CHECK-NEXT: [[R:%.*]] = call i32 @llvm.bswap.i32(i32 [[S]])
; CHECK-NEXT: ret i32 [[R]]
;
%s = lshr i32 %x, 12
%r = call i32 @llvm.bswap.i32(i32 %s)
ret i32 %r
}
; negative test - uses
define i32 @lshr8_i32_use(i32 %x, ptr %p) {
; CHECK-LABEL: @lshr8_i32_use(
; CHECK-NEXT: [[S:%.*]] = lshr i32 [[X:%.*]], 12
; CHECK-NEXT: store i32 [[S]], ptr [[P:%.*]], align 4
; CHECK-NEXT: [[R:%.*]] = call i32 @llvm.bswap.i32(i32 [[S]])
; CHECK-NEXT: ret i32 [[R]]
;
%s = lshr i32 %x, 12
store i32 %s, ptr %p
%r = call i32 @llvm.bswap.i32(i32 %s)
ret i32 %r
}
define i64 @shl16_i64(i64 %x) {
; CHECK-LABEL: @shl16_i64(
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.bswap.i64(i64 [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = lshr i64 [[TMP1]], 16
; CHECK-NEXT: ret i64 [[R]]
;
%s = shl i64 %x, 16
%r = call i64 @llvm.bswap.i64(i64 %s)
ret i64 %r
}
; poison vector element propagates
define <2 x i64> @shl16_v2i64(<2 x i64> %x) {
; CHECK-LABEL: @shl16_v2i64(
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = lshr <2 x i64> [[TMP1]], <i64 poison, i64 24>
; CHECK-NEXT: ret <2 x i64> [[R]]
;
%s = shl <2 x i64> %x, <i64 poison, i64 24>
%r = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %s)
ret <2 x i64> %r
}
define i64 @shl56_i64(i64 %x) {
; CHECK-LABEL: @shl56_i64(
; CHECK-NEXT: [[R:%.*]] = and i64 [[X:%.*]], 255
; CHECK-NEXT: ret i64 [[R]]
;
%s = shl i64 %x, 56
%r = call i64 @llvm.bswap.i64(i64 %s)
ret i64 %r
}
; negative test - need shift-by-8-bit-multiple
define i64 @shl42_i64(i64 %x) {
; CHECK-LABEL: @shl42_i64(
; CHECK-NEXT: [[S:%.*]] = shl i64 [[X:%.*]], 42
; CHECK-NEXT: [[R:%.*]] = call i64 @llvm.bswap.i64(i64 [[S]])
; CHECK-NEXT: ret i64 [[R]]
;
%s = shl i64 %x, 42
%r = call i64 @llvm.bswap.i64(i64 %s)
ret i64 %r
}
; negative test - uses
define i32 @shl8_i32_use(i32 %x, ptr %p) {
; CHECK-LABEL: @shl8_i32_use(
; CHECK-NEXT: [[S:%.*]] = shl i32 [[X:%.*]], 8
; CHECK-NEXT: store i32 [[S]], ptr [[P:%.*]], align 4
; CHECK-NEXT: [[R:%.*]] = call i32 @llvm.bswap.i32(i32 [[S]])
; CHECK-NEXT: ret i32 [[R]]
;
%s = shl i32 %x, 8
store i32 %s, ptr %p
%r = call i32 @llvm.bswap.i32(i32 %s)
ret i32 %r
}
; swaps cancel
define i64 @swap_shl16_i64(i64 %x) {
; CHECK-LABEL: @swap_shl16_i64(
; CHECK-NEXT: [[R:%.*]] = lshr i64 [[X:%.*]], 16
; CHECK-NEXT: ret i64 [[R]]
;
%b = call i64 @llvm.bswap.i64(i64 %x)
%s = shl i64 %b, 16
%r = call i64 @llvm.bswap.i64(i64 %s)
ret i64 %r
}
; canonicalize shift after bswap if shift amount is multiple of 8-bits
; (including non-uniform vector elements)
define <2 x i32> @variable_lshr_v2i32(<2 x i32> %x, <2 x i32> %n) {
; CHECK-LABEL: @variable_lshr_v2i32(
; CHECK-NEXT: [[SHAMT:%.*]] = and <2 x i32> [[N:%.*]], <i32 -8, i32 -16>
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[X:%.*]])
; CHECK-NEXT: [[R:%.*]] = lshr <2 x i32> [[TMP1]], [[SHAMT]]
; CHECK-NEXT: ret <2 x i32> [[R]]
;
%shamt = and <2 x i32> %n, <i32 -8, i32 -16>
%s = shl <2 x i32> %x, %shamt
%r = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %s)
ret <2 x i32> %r
}
; PR55327 - swaps cancel
define i64 @variable_shl_i64(i64 %x, i64 %n) {
; CHECK-LABEL: @variable_shl_i64(
; CHECK-NEXT: [[N8:%.*]] = shl i64 [[N:%.*]], 3
; CHECK-NEXT: [[SHAMT:%.*]] = and i64 [[N8]], 56
; CHECK-NEXT: [[R:%.*]] = lshr i64 [[X:%.*]], [[SHAMT]]
; CHECK-NEXT: ret i64 [[R]]
;
%b = tail call i64 @llvm.bswap.i64(i64 %x)
%n8 = shl i64 %n, 3
%shamt = and i64 %n8, 56
%s = shl i64 %b, %shamt
%r = tail call i64 @llvm.bswap.i64(i64 %s)
ret i64 %r
}
; negative test - must have multiple of 8-bit shift amount
define i64 @variable_shl_not_masked_enough_i64(i64 %x, i64 %n) {
; CHECK-LABEL: @variable_shl_not_masked_enough_i64(
; CHECK-NEXT: [[SHAMT:%.*]] = and i64 [[N:%.*]], -4
; CHECK-NEXT: [[S:%.*]] = shl i64 [[X:%.*]], [[SHAMT]]
; CHECK-NEXT: [[R:%.*]] = call i64 @llvm.bswap.i64(i64 [[S]])
; CHECK-NEXT: ret i64 [[R]]
;
%shamt = and i64 %n, -4
%s = shl i64 %x, %shamt
%r = call i64 @llvm.bswap.i64(i64 %s)
ret i64 %r
}
; PR5284
define i16 @test7(i32 %A) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: [[TMP1:%.*]] = lshr i32 [[A:%.*]], 16
; CHECK-NEXT: [[D:%.*]] = trunc i32 [[TMP1]] to i16
; CHECK-NEXT: ret i16 [[D]]
;
%B = tail call i32 @llvm.bswap.i32(i32 %A) nounwind
%C = trunc i32 %B to i16
%D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
ret i16 %D
}
define <2 x i16> @test7_vector(<2 x i32> %A) {
; CHECK-LABEL: @test7_vector(
; CHECK-NEXT: [[TMP1:%.*]] = lshr <2 x i32> [[A:%.*]], <i32 16, i32 16>
; CHECK-NEXT: [[D:%.*]] = trunc <2 x i32> [[TMP1]] to <2 x i16>
; CHECK-NEXT: ret <2 x i16> [[D]]
;
%B = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %A) nounwind
%C = trunc <2 x i32> %B to <2 x i16>
%D = tail call <2 x i16> @llvm.bswap.v2i16(<2 x i16> %C) nounwind
ret <2 x i16> %D
}
define i16 @test8(i64 %A) {
; CHECK-LABEL: @test8(
; CHECK-NEXT: [[TMP1:%.*]] = lshr i64 [[A:%.*]], 48
; CHECK-NEXT: [[D:%.*]] = trunc i64 [[TMP1]] to i16
; CHECK-NEXT: ret i16 [[D]]
;
%B = tail call i64 @llvm.bswap.i64(i64 %A) nounwind
%C = trunc i64 %B to i16
%D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
ret i16 %D
}
define <2 x i16> @test8_vector(<2 x i64> %A) {
; CHECK-LABEL: @test8_vector(
; CHECK-NEXT: [[TMP1:%.*]] = lshr <2 x i64> [[A:%.*]], <i64 48, i64 48>
; CHECK-NEXT: [[D:%.*]] = trunc <2 x i64> [[TMP1]] to <2 x i16>
; CHECK-NEXT: ret <2 x i16> [[D]]
;
%B = tail call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %A) nounwind
%C = trunc <2 x i64> %B to <2 x i16>
%D = tail call <2 x i16> @llvm.bswap.v2i16(<2 x i16> %C) nounwind
ret <2 x i16> %D
}
; Misc: Fold bswap(undef) to undef.
define i64 @foo() {
; CHECK-LABEL: @foo(
; CHECK-NEXT: ret i64 undef
;
%a = call i64 @llvm.bswap.i64(i64 undef)
ret i64 %a
}
; PR15782
; Fold: OP( BSWAP(x), BSWAP(y) ) -> BSWAP( OP(x, y) )
; Fold: OP( BSWAP(x), CONSTANT ) -> BSWAP( OP(x, BSWAP(CONSTANT) ) )
define i16 @bs_and16i(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_and16i(
; CHECK-NEXT: [[TMP1:%.*]] = and i16 [[A:%.*]], 4391
; CHECK-NEXT: [[TMP2:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP1]])
; CHECK-NEXT: ret i16 [[TMP2]]
;
%1 = tail call i16 @llvm.bswap.i16(i16 %a)
%2 = and i16 %1, 10001
ret i16 %2
}
define i16 @bs_and16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_and16(
; CHECK-NEXT: [[TMP1:%.*]] = and i16 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP1]])
; CHECK-NEXT: ret i16 [[T3]]
;
%t1 = tail call i16 @llvm.bswap.i16(i16 %a)
%t2 = tail call i16 @llvm.bswap.i16(i16 %b)
%t3 = and i16 %t1, %t2
ret i16 %t3
}
define i16 @bs_or16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_or16(
; CHECK-NEXT: [[TMP1:%.*]] = or i16 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP1]])
; CHECK-NEXT: ret i16 [[T3]]
;
%t1 = tail call i16 @llvm.bswap.i16(i16 %a)
%t2 = tail call i16 @llvm.bswap.i16(i16 %b)
%t3 = or i16 %t1, %t2
ret i16 %t3
}
define i16 @bs_xor16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_xor16(
; CHECK-NEXT: [[TMP1:%.*]] = xor i16 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP1]])
; CHECK-NEXT: ret i16 [[T3]]
;
%t1 = tail call i16 @llvm.bswap.i16(i16 %a)
%t2 = tail call i16 @llvm.bswap.i16(i16 %b)
%t3 = xor i16 %t1, %t2
ret i16 %t3
}
define i32 @bs_and32i(i32 %a, i32 %b) #0 {
; CHECK-LABEL: @bs_and32i(
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], -1585053440
; CHECK-NEXT: [[T2:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP1]])
; CHECK-NEXT: ret i32 [[T2]]
;
%t1 = tail call i32 @llvm.bswap.i32(i32 %a)
%t2 = and i32 %t1, 100001
ret i32 %t2
}
define i32 @bs_and32(i32 %a, i32 %b) #0 {
; CHECK-LABEL: @bs_and32(
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP1]])
; CHECK-NEXT: ret i32 [[T3]]
;
%t1 = tail call i32 @llvm.bswap.i32(i32 %a)
%t2 = tail call i32 @llvm.bswap.i32(i32 %b)
%t3 = and i32 %t1, %t2
ret i32 %t3
}
define i32 @bs_or32(i32 %a, i32 %b) #0 {
; CHECK-LABEL: @bs_or32(
; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP1]])
; CHECK-NEXT: ret i32 [[T3]]
;
%t1 = tail call i32 @llvm.bswap.i32(i32 %a)
%t2 = tail call i32 @llvm.bswap.i32(i32 %b)
%t3 = or i32 %t1, %t2
ret i32 %t3
}
define i32 @bs_xor32(i32 %a, i32 %b) #0 {
; CHECK-LABEL: @bs_xor32(
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP1]])
; CHECK-NEXT: ret i32 [[T3]]
;
%t1 = tail call i32 @llvm.bswap.i32(i32 %a)
%t2 = tail call i32 @llvm.bswap.i32(i32 %b)
%t3 = xor i32 %t1, %t2
ret i32 %t3
}
define i64 @bs_and64i(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and64i(
; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[A:%.*]], 129085117527228416
; CHECK-NEXT: [[T2:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP1]])
; CHECK-NEXT: ret i64 [[T2]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = and i64 %t1, 1000000001
ret i64 %t2
}
define i64 @bs_and64(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and64(
; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP1]])
; CHECK-NEXT: ret i64 [[T3]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = tail call i64 @llvm.bswap.i64(i64 %b)
%t3 = and i64 %t1, %t2
ret i64 %t3
}
define i64 @bs_or64(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_or64(
; CHECK-NEXT: [[TMP1:%.*]] = or i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP1]])
; CHECK-NEXT: ret i64 [[T3]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = tail call i64 @llvm.bswap.i64(i64 %b)
%t3 = or i64 %t1, %t2
ret i64 %t3
}
define i64 @bs_xor64(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_xor64(
; CHECK-NEXT: [[TMP1:%.*]] = xor i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP1]])
; CHECK-NEXT: ret i64 [[T3]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = tail call i64 @llvm.bswap.i64(i64 %b)
%t3 = xor i64 %t1, %t2
ret i64 %t3
}
define <2 x i32> @bs_and32vec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_and32vec(
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP1]])
; CHECK-NEXT: ret <2 x i32> [[T3]]
;
%t1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %a)
%t2 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %b)
%t3 = and <2 x i32> %t1, %t2
ret <2 x i32> %t3
}
define <2 x i32> @bs_or32vec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_or32vec(
; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP1]])
; CHECK-NEXT: ret <2 x i32> [[T3]]
;
%t1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %a)
%t2 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %b)
%t3 = or <2 x i32> %t1, %t2
ret <2 x i32> %t3
}
define <2 x i32> @bs_xor32vec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_xor32vec(
; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i32> [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP1]])
; CHECK-NEXT: ret <2 x i32> [[T3]]
;
%t1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %a)
%t2 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %b)
%t3 = xor <2 x i32> %t1, %t2
ret <2 x i32> %t3
}
define <2 x i32> @bs_and32ivec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_and32ivec(
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[A:%.*]], <i32 -1585053440, i32 -1585053440>
; CHECK-NEXT: [[T2:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP1]])
; CHECK-NEXT: ret <2 x i32> [[T2]]
;
%t1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %a)
%t2 = and <2 x i32> %t1, <i32 100001, i32 100001>
ret <2 x i32> %t2
}
define <2 x i32> @bs_or32ivec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_or32ivec(
; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[A:%.*]], <i32 -1585053440, i32 -1585053440>
; CHECK-NEXT: [[T2:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP1]])
; CHECK-NEXT: ret <2 x i32> [[T2]]
;
%t1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %a)
%t2 = or <2 x i32> %t1, <i32 100001, i32 100001>
ret <2 x i32> %t2
}
define <2 x i32> @bs_xor32ivec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_xor32ivec(
; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i32> [[A:%.*]], <i32 -1585053440, i32 -1585053440>
; CHECK-NEXT: [[T2:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP1]])
; CHECK-NEXT: ret <2 x i32> [[T2]]
;
%t1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %a)
%t2 = xor <2 x i32> %t1, <i32 100001, i32 100001>
ret <2 x i32> %t2
}
define i64 @bs_and64_multiuse1(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and64_multiuse1(
; CHECK-NEXT: [[T1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[A:%.*]])
; CHECK-NEXT: [[T2:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[B:%.*]])
; CHECK-NEXT: [[T3:%.*]] = and i64 [[T1]], [[T2]]
; CHECK-NEXT: [[T4:%.*]] = mul i64 [[T3]], [[T1]]
; CHECK-NEXT: [[T5:%.*]] = mul i64 [[T4]], [[T2]]
; CHECK-NEXT: ret i64 [[T5]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = tail call i64 @llvm.bswap.i64(i64 %b)
%t3 = and i64 %t1, %t2
%t4 = mul i64 %t3, %t1 ; to increase use count of the bswaps
%t5 = mul i64 %t4, %t2 ; to increase use count of the bswaps
ret i64 %t5
}
define i64 @bs_and64_multiuse2(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and64_multiuse2(
; CHECK-NEXT: [[T1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[A:%.*]])
; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[A]], [[B:%.*]]
; CHECK-NEXT: [[T3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP1]])
; CHECK-NEXT: [[T4:%.*]] = mul i64 [[T3]], [[T1]]
; CHECK-NEXT: ret i64 [[T4]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = tail call i64 @llvm.bswap.i64(i64 %b)
%t3 = and i64 %t1, %t2
%t4 = mul i64 %t3, %t1 ; to increase use count of the bswaps
ret i64 %t4
}
define i64 @bs_and64_multiuse3(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and64_multiuse3(
; CHECK-NEXT: [[T2:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[B:%.*]])
; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[A:%.*]], [[B]]
; CHECK-NEXT: [[T3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP1]])
; CHECK-NEXT: [[T4:%.*]] = mul i64 [[T3]], [[T2]]
; CHECK-NEXT: ret i64 [[T4]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = tail call i64 @llvm.bswap.i64(i64 %b)
%t3 = and i64 %t1, %t2
%t4 = mul i64 %t3, %t2 ; to increase use count of the bswaps
ret i64 %t4
}
define i64 @bs_and64i_multiuse(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and64i_multiuse(
; CHECK-NEXT: [[T1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[A:%.*]])
; CHECK-NEXT: [[T2:%.*]] = and i64 [[T1]], 1000000001
; CHECK-NEXT: [[T3:%.*]] = mul i64 [[T2]], [[T1]]
; CHECK-NEXT: ret i64 [[T3]]
;
%t1 = tail call i64 @llvm.bswap.i64(i64 %a)
%t2 = and i64 %t1, 1000000001
%t3 = mul i64 %t2, %t1 ; to increase use count of the bswap
ret i64 %t3
}
; Issue#62236
; Fold: BSWAP( OP( BSWAP(x), y ) ) -> OP( x, BSWAP(y) )
define i16 @bs_and_lhs_bs16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_and_lhs_bs16(
; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.bswap.i16(i16 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = and i16 [[TMP1]], [[A:%.*]]
; CHECK-NEXT: ret i16 [[TMP2]]
;
%1 = tail call i16 @llvm.bswap.i16(i16 %a)
%2 = and i16 %1, %b
%3 = tail call i16 @llvm.bswap.i16(i16 %2)
ret i16 %3
}
define i16 @bs_or_lhs_bs16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_or_lhs_bs16(
; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.bswap.i16(i16 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = or i16 [[TMP1]], [[A:%.*]]
; CHECK-NEXT: ret i16 [[TMP2]]
;
%1 = tail call i16 @llvm.bswap.i16(i16 %a)
%2 = or i16 %1, %b
%3 = tail call i16 @llvm.bswap.i16(i16 %2)
ret i16 %3
}
define i16 @bs_xor_lhs_bs16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_xor_lhs_bs16(
; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.bswap.i16(i16 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = xor i16 [[TMP1]], [[A:%.*]]
; CHECK-NEXT: ret i16 [[TMP2]]
;
%1 = tail call i16 @llvm.bswap.i16(i16 %a)
%2 = xor i16 %1, %b
%3 = tail call i16 @llvm.bswap.i16(i16 %2)
ret i16 %3
}
define i16 @bs_and_rhs_bs16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_and_rhs_bs16(
; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.bswap.i16(i16 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = and i16 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i16 [[TMP2]]
;
%1 = tail call i16 @llvm.bswap.i16(i16 %b)
%2 = and i16 %a, %1
%3 = tail call i16 @llvm.bswap.i16(i16 %2)
ret i16 %3
}
define i16 @bs_or_rhs_bs16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_or_rhs_bs16(
; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.bswap.i16(i16 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = or i16 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i16 [[TMP2]]
;
%1 = tail call i16 @llvm.bswap.i16(i16 %b)
%2 = or i16 %a, %1
%3 = tail call i16 @llvm.bswap.i16(i16 %2)
ret i16 %3
}
define i16 @bs_xor_rhs_bs16(i16 %a, i16 %b) #0 {
; CHECK-LABEL: @bs_xor_rhs_bs16(
; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.bswap.i16(i16 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = xor i16 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i16 [[TMP2]]
;
%1 = tail call i16 @llvm.bswap.i16(i16 %b)
%2 = xor i16 %a, %1
%3 = tail call i16 @llvm.bswap.i16(i16 %2)
ret i16 %3
}
define i32 @bs_and_rhs_bs32(i32 %a, i32 %b) #0 {
; CHECK-LABEL: @bs_and_rhs_bs32(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.bswap.i32(i32 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[TMP2]]
;
%1 = tail call i32 @llvm.bswap.i32(i32 %b)
%2 = and i32 %a, %1
%3 = tail call i32 @llvm.bswap.i32(i32 %2)
ret i32 %3
}
define i32 @bs_or_rhs_bs32(i32 %a, i32 %b) #0 {
; CHECK-LABEL: @bs_or_rhs_bs32(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.bswap.i32(i32 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = or i32 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[TMP2]]
;
%1 = tail call i32 @llvm.bswap.i32(i32 %b)
%2 = or i32 %a, %1
%3 = tail call i32 @llvm.bswap.i32(i32 %2)
ret i32 %3
}
define i32 @bs_xor_rhs_bs32(i32 %a, i32 %b) #0 {
; CHECK-LABEL: @bs_xor_rhs_bs32(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.bswap.i32(i32 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = xor i32 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[TMP2]]
;
%1 = tail call i32 @llvm.bswap.i32(i32 %b)
%2 = xor i32 %a, %1
%3 = tail call i32 @llvm.bswap.i32(i32 %2)
ret i32 %3
}
define i64 @bs_and_rhs_bs64(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and_rhs_bs64(
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.bswap.i64(i64 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i64 [[TMP2]]
;
%1 = tail call i64 @llvm.bswap.i64(i64 %b)
%2 = and i64 %a, %1
%3 = tail call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
define i64 @bs_or_rhs_bs64(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_or_rhs_bs64(
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.bswap.i64(i64 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = or i64 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i64 [[TMP2]]
;
%1 = tail call i64 @llvm.bswap.i64(i64 %b)
%2 = or i64 %a, %1
%3 = tail call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
define i64 @bs_xor_rhs_bs64(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_xor_rhs_bs64(
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.bswap.i64(i64 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = xor i64 [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret i64 [[TMP2]]
;
%1 = tail call i64 @llvm.bswap.i64(i64 %b)
%2 = xor i64 %a, %1
%3 = tail call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
define <2 x i32> @bs_and_rhs_i32vec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_and_rhs_i32vec(
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret <2 x i32> [[TMP2]]
;
%1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %b)
%2 = and <2 x i32> %a, %1
%3 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
define <2 x i32> @bs_or_rhs_i32vec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_or_rhs_i32vec(
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = or <2 x i32> [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret <2 x i32> [[TMP2]]
;
%1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %b)
%2 = or <2 x i32> %a, %1
%3 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
define <2 x i32> @bs_xor_rhs_i32vec(<2 x i32> %a, <2 x i32> %b) #0 {
; CHECK-LABEL: @bs_xor_rhs_i32vec(
; CHECK-NEXT: [[TMP1:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = xor <2 x i32> [[TMP1]], [[B:%.*]]
; CHECK-NEXT: ret <2 x i32> [[TMP2]]
;
%1 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %b)
%2 = xor <2 x i32> %a, %1
%3 = tail call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
define i64 @bs_and_rhs_bs64_multiuse1(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and_rhs_bs64_multiuse1(
; CHECK-NEXT: [[TMP1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP1]], [[A:%.*]]
; CHECK-NEXT: [[TMP3:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[TMP2]])
; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP2]], [[TMP3]]
; CHECK-NEXT: ret i64 [[TMP4]]
;
%1 = tail call i64 @llvm.bswap.i64(i64 %b)
%2 = and i64 %a, %1
%3 = tail call i64 @llvm.bswap.i64(i64 %2)
%4 = mul i64 %2, %3 ;increase use of logical op
ret i64 %4
}
define i64 @bs_and_rhs_bs64_multiuse2(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_and_rhs_bs64_multiuse2(
; CHECK-NEXT: [[TMP1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP1]], [[A:%.*]]
; CHECK-NEXT: [[TMP3:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[TMP2]])
; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP1]], [[TMP3]]
; CHECK-NEXT: ret i64 [[TMP4]]
;
%1 = tail call i64 @llvm.bswap.i64(i64 %b)
%2 = and i64 %a, %1
%3 = tail call i64 @llvm.bswap.i64(i64 %2)
%4 = mul i64 %1, %3 ;increase use of inner bswap
ret i64 %4
}
define i64 @bs_all_operand64(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_all_operand64(
; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: ret i64 [[TMP1]]
;
%1 = tail call i64 @llvm.bswap.i64(i64 %a)
%2 = tail call i64 @llvm.bswap.i64(i64 %b)
%3 = and i64 %1, %2
%4 = tail call i64 @llvm.bswap.i64(i64 %3)
ret i64 %4
}
define i64 @bs_all_operand64_multiuse_both(i64 %a, i64 %b) #0 {
; CHECK-LABEL: @bs_all_operand64_multiuse_both(
; CHECK-NEXT: [[TMP1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[B:%.*]])
; CHECK-NEXT: [[TMP3:%.*]] = and i64 [[A]], [[B]]
; CHECK-NEXT: call void @use.i64(i64 [[TMP1]])
; CHECK-NEXT: call void @use.i64(i64 [[TMP2]])
; CHECK-NEXT: ret i64 [[TMP3]]
;
%1 = tail call i64 @llvm.bswap.i64(i64 %a)
%2 = tail call i64 @llvm.bswap.i64(i64 %b)
%3 = and i64 %1, %2
%4 = tail call i64 @llvm.bswap.i64(i64 %3)
call void @use.i64(i64 %1)
call void @use.i64(i64 %2)
ret i64 %4
}
@gp = external global [0 x i8]
define void @bs_and_constexpr(ptr %out, i64 %a) {
; CHECK-LABEL: @bs_and_constexpr(
; CHECK-NEXT: [[EXP:%.*]] = and i64 ptrtoint (ptr @gp to i64), 4095
; CHECK-NEXT: [[RES:%.*]] = call i64 @llvm.bswap.i64(i64 [[EXP]])
; CHECK-NEXT: store i64 [[RES]], ptr [[OUT:%.*]], align 8
; CHECK-NEXT: ret void
;
%gpi = ptrtoint ptr @gp to i64
%exp = and i64 %gpi, 4095
%res = call i64 @llvm.bswap.i64(i64 %exp)
store i64 %res, ptr %out, align 8
ret void
}
define void @bs_and_bs_constexpr(ptr %out, i64 %a) {
; CHECK-LABEL: @bs_and_bs_constexpr(
; CHECK-NEXT: [[TMP1:%.*]] = and i64 ptrtoint (ptr @gp to i64), -67835469387268096
; CHECK-NEXT: store i64 [[TMP1]], ptr [[OUT:%.*]], align 8
; CHECK-NEXT: ret void
;
%gpi = ptrtoint ptr @gp to i64
%bs_gpi = call i64 @llvm.bswap.i64(i64 %gpi)
%exp = and i64 %bs_gpi, 4095
%res = call i64 @llvm.bswap.i64(i64 %exp)
store i64 %res, ptr %out, align 8
ret void
}
define i64 @bs_active_high8(i64 %0) {
; CHECK-LABEL: @bs_active_high8(
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP0:%.*]], 255
; CHECK-NEXT: ret i64 [[TMP2]]
;
%2 = shl i64 %0, 56
%3 = call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
define i32 @bs_active_high7(i32 %0) {
; CHECK-LABEL: @bs_active_high7(
; CHECK-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP0:%.*]], 24
; CHECK-NEXT: [[TMP3:%.*]] = and i32 [[TMP2]], 254
; CHECK-NEXT: ret i32 [[TMP3]]
;
%2 = and i32 %0, -33554432 ; 0xfe000000
%3 = call i32 @llvm.bswap.i32(i32 %2)
ret i32 %3
}
define <2 x i64> @bs_active_high4(<2 x i64> %0) {
; CHECK-LABEL: @bs_active_high4(
; CHECK-NEXT: [[TMP2:%.*]] = shl <2 x i64> [[TMP0:%.*]], <i64 4, i64 4>
; CHECK-NEXT: [[TMP3:%.*]] = and <2 x i64> [[TMP2]], <i64 240, i64 240>
; CHECK-NEXT: ret <2 x i64> [[TMP3]]
;
%2 = shl <2 x i64> %0, <i64 60, i64 60>
%3 = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %2)
ret <2 x i64> %3
}
define <2 x i64> @bs_active_high_different(<2 x i64> %0) {
; CHECK-LABEL: @bs_active_high_different(
; CHECK-NEXT: [[TMP2:%.*]] = shl <2 x i64> [[TMP0:%.*]], <i64 56, i64 57>
; CHECK-NEXT: [[TMP3:%.*]] = lshr exact <2 x i64> [[TMP2]], <i64 56, i64 56>
; CHECK-NEXT: ret <2 x i64> [[TMP3]]
;
%2 = shl <2 x i64> %0, <i64 56, i64 57>
%3 = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %2)
ret <2 x i64> %3
}
; negative test
define <2 x i64> @bs_active_high_different_negative(<2 x i64> %0) {
; CHECK-LABEL: @bs_active_high_different_negative(
; CHECK-NEXT: [[TMP2:%.*]] = shl <2 x i64> [[TMP0:%.*]], <i64 56, i64 55>
; CHECK-NEXT: [[TMP3:%.*]] = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> [[TMP2]])
; CHECK-NEXT: ret <2 x i64> [[TMP3]]
;
%2 = shl <2 x i64> %0, <i64 56, i64 55> ; second elem has 9 active high bits
%3 = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %2)
ret <2 x i64> %3
}
; TODO: This should fold to 'and'.
define <2 x i64> @bs_active_high_undef(<2 x i64> %0) {
; CHECK-LABEL: @bs_active_high_undef(
; CHECK-NEXT: [[TMP2:%.*]] = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> [[TMP0:%.*]])
; CHECK-NEXT: [[TMP3:%.*]] = lshr <2 x i64> [[TMP2]], <i64 56, i64 undef>
; CHECK-NEXT: ret <2 x i64> [[TMP3]]
;
%2 = shl <2 x i64> %0, <i64 56, i64 undef>
%3 = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %2)
ret <2 x i64> %3
}
define i64 @bs_active_high8_multiuse(i64 %0) {
; CHECK-LABEL: @bs_active_high8_multiuse(
; CHECK-NEXT: [[TMP2:%.*]] = shl i64 [[TMP0:%.*]], 56
; CHECK-NEXT: [[TMP3:%.*]] = and i64 [[TMP0]], 255
; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP2]], [[TMP3]]
; CHECK-NEXT: ret i64 [[TMP4]]
;
%2 = shl i64 %0, 56
%3 = call i64 @llvm.bswap.i64(i64 %2)
%4 = mul i64 %2, %3 ; increase use of shl and bswap
ret i64 %4
}
define i64 @bs_active_high7_multiuse(i64 %0) {
; CHECK-LABEL: @bs_active_high7_multiuse(
; CHECK-NEXT: [[TMP2:%.*]] = shl i64 [[TMP0:%.*]], 57
; CHECK-NEXT: [[TMP3:%.*]] = lshr exact i64 [[TMP2]], 56
; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP2]], [[TMP3]]
; CHECK-NEXT: ret i64 [[TMP4]]
;
%2 = shl i64 %0, 57
%3 = call i64 @llvm.bswap.i64(i64 %2)
%4 = mul i64 %2, %3 ; increase use of shl and bswap
ret i64 %4
}
define i64 @bs_active_byte_6h(i64 %0) {
; CHECK-LABEL: @bs_active_byte_6h(
; CHECK-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP0:%.*]], 24
; CHECK-NEXT: [[TMP3:%.*]] = and i64 [[TMP2]], 16711680
; CHECK-NEXT: ret i64 [[TMP3]]
;
%2 = and i64 %0, 280375465082880 ; 0xff00'00000000
%3 = call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
define i32 @bs_active_byte_3h(i32 %0) {
; CHECK-LABEL: @bs_active_byte_3h(
; CHECK-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP0:%.*]], 8
; CHECK-NEXT: [[TMP3:%.*]] = and i32 [[TMP2]], 1536
; CHECK-NEXT: ret i32 [[TMP3]]
;
%2 = and i32 %0, 393216 ; 0x0006'0000
%3 = call i32 @llvm.bswap.i32(i32 %2)
ret i32 %3
}
define <2 x i32> @bs_active_byte_3h_v2(<2 x i32> %0) {
; CHECK-LABEL: @bs_active_byte_3h_v2(
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP0:%.*]], <i32 8388608, i32 65536>
; CHECK-NEXT: [[TMP3:%.*]] = lshr exact <2 x i32> [[TMP2]], <i32 8, i32 8>
; CHECK-NEXT: ret <2 x i32> [[TMP3]]
;
%2 = and <2 x i32> %0, <i32 8388608, i32 65536> ; 0x0080'0000, 0x0001'0000
%3 = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
; negative test
define i64 @bs_active_byte_78h(i64 %0) {
; CHECK-LABEL: @bs_active_byte_78h(
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP0:%.*]], 108086391056891904
; CHECK-NEXT: [[TMP3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP2]])
; CHECK-NEXT: ret i64 [[TMP3]]
;
%2 = and i64 %0, 108086391056891904 ; 0x01800000'00000000
%3 = call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
define i16 @bs_active_low1(i16 %0) {
; CHECK-LABEL: @bs_active_low1(
; CHECK-NEXT: [[TMP2:%.*]] = lshr i16 [[TMP0:%.*]], 7
; CHECK-NEXT: [[TMP3:%.*]] = and i16 [[TMP2]], 256
; CHECK-NEXT: ret i16 [[TMP3]]
;
%2 = lshr i16 %0, 15
%3 = call i16 @llvm.bswap.i16(i16 %2)
ret i16 %3
}
define <2 x i32> @bs_active_low8(<2 x i32> %0) {
; CHECK-LABEL: @bs_active_low8(
; CHECK-NEXT: [[TMP2:%.*]] = shl <2 x i32> [[TMP0:%.*]], <i32 24, i32 24>
; CHECK-NEXT: ret <2 x i32> [[TMP2]]
;
%2 = and <2 x i32> %0, <i32 255, i32 255>
%3 = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
define <2 x i32> @bs_active_low_different(<2 x i32> %0) {
; CHECK-LABEL: @bs_active_low_different(
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP0:%.*]], <i32 2, i32 128>
; CHECK-NEXT: [[TMP3:%.*]] = shl nuw <2 x i32> [[TMP2]], <i32 24, i32 24>
; CHECK-NEXT: ret <2 x i32> [[TMP3]]
;
%2 = and <2 x i32> %0, <i32 2, i32 128>
%3 = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
; negative test
define <2 x i32> @bs_active_low_different_negative(<2 x i32> %0) {
; CHECK-LABEL: @bs_active_low_different_negative(
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP0:%.*]], <i32 256, i32 255>
; CHECK-NEXT: [[TMP3:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP2]])
; CHECK-NEXT: ret <2 x i32> [[TMP3]]
;
%2 = and <2 x i32> %0, <i32 256, i32 255>
%3 = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
; negative test
define <2 x i32> @bs_active_low_undef(<2 x i32> %0) {
; CHECK-LABEL: @bs_active_low_undef(
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP0:%.*]], <i32 255, i32 undef>
; CHECK-NEXT: [[TMP3:%.*]] = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> [[TMP2]])
; CHECK-NEXT: ret <2 x i32> [[TMP3]]
;
%2 = and <2 x i32> %0, <i32 255, i32 undef>
%3 = call <2 x i32> @llvm.bswap.v2i32(<2 x i32> %2)
ret <2 x i32> %3
}
define i64 @bs_active_low8_multiuse(i64 %0) {
; CHECK-LABEL: @bs_active_low8_multiuse(
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP0:%.*]], 255
; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP2]], 56
; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP2]], [[TMP3]]
; CHECK-NEXT: ret i64 [[TMP4]]
;
%2 = and i64 %0, 255
%3 = call i64 @llvm.bswap.i64(i64 %2)
%4 = mul i64 %2, %3 ; increase use of and and bswap
ret i64 %4
}
define i64 @bs_active_low7_multiuse(i64 %0) {
; CHECK-LABEL: @bs_active_low7_multiuse(
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP0:%.*]], 127
; CHECK-NEXT: [[TMP3:%.*]] = shl nuw nsw i64 [[TMP2]], 56
; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP2]], [[TMP3]]
; CHECK-NEXT: ret i64 [[TMP4]]
;
%2 = and i64 %0, 127
%3 = call i64 @llvm.bswap.i64(i64 %2)
%4 = mul i64 %2, %3 ; increase use of and and bswap
ret i64 %4
}
define i64 @bs_active_byte_4l(i64 %0) {
; CHECK-LABEL: @bs_active_byte_4l(
; CHECK-NEXT: [[TMP2:%.*]] = shl i64 [[TMP0:%.*]], 8
; CHECK-NEXT: [[TMP3:%.*]] = and i64 [[TMP2]], 292057776128
; CHECK-NEXT: ret i64 [[TMP3]]
;
%2 = and i64 %0, 1140850688 ; 0x44000000
%3 = call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
define i32 @bs_active_byte_2l(i32 %0) {
; CHECK-LABEL: @bs_active_byte_2l(
; CHECK-NEXT: [[TMP2:%.*]] = shl i32 [[TMP0:%.*]], 8
; CHECK-NEXT: [[TMP3:%.*]] = and i32 [[TMP2]], 16711680
; CHECK-NEXT: ret i32 [[TMP3]]
;
%2 = and i32 %0, 65280 ; 0xff00
%3 = call i32 @llvm.bswap.i32(i32 %2)
ret i32 %3
}
define <2 x i64> @bs_active_byte_2l_v2(<2 x i64> %0) {
; CHECK-LABEL: @bs_active_byte_2l_v2(
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i64> [[TMP0:%.*]], <i64 256, i64 65280>
; CHECK-NEXT: [[TMP3:%.*]] = shl nuw nsw <2 x i64> [[TMP2]], <i64 40, i64 40>
; CHECK-NEXT: ret <2 x i64> [[TMP3]]
;
%2 = and <2 x i64> %0, <i64 256, i64 65280> ; 0x0100, 0xff00
%3 = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %2)
ret <2 x i64> %3
}
; negative test
define i64 @bs_active_byte_12l(i64 %0) {
; CHECK-LABEL: @bs_active_byte_12l(
; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[TMP0:%.*]], 384
; CHECK-NEXT: [[TMP3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP2]])
; CHECK-NEXT: ret i64 [[TMP3]]
;
%2 = and i64 %0, 384 ; 0x0180
%3 = call i64 @llvm.bswap.i64(i64 %2)
ret i64 %3
}
declare i64 @use.i64(i64)
declare i16 @llvm.bswap.i16(i16)
declare i32 @llvm.bswap.i32(i32)
declare i64 @llvm.bswap.i64(i64)
declare <2 x i16> @llvm.bswap.v2i16(<2 x i16>)
declare <2 x i32> @llvm.bswap.v2i32(<2 x i32>)
declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)