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llvm / llvm-project / llvm / 0410e9c75c4b25d71c9794f8cb51d60642ea8123 / . / test / Transforms / CorrelatedValuePropagation / icmp.ll
blob: b1e3bd334d910ad8f8f15a741257a58849b3954d [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -correlated-propagation -S %s | FileCheck %s
; RUN: opt -passes=correlated-propagation -S %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.10.0"
declare void @check1(i1) #1
declare void @check2(i1) #1
declare void @llvm.assume(i1)
; Make sure we propagate the value of %tmp35 to the true/false cases
define void @test1(i64 %tmp35) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[TMP36:%.*]] = icmp sgt i64 [[TMP35:%.*]], 0
; CHECK-NEXT: br i1 [[TMP36]], label [[BB_TRUE:%.*]], label [[BB_FALSE:%.*]]
; CHECK: bb_true:
; CHECK-NEXT: tail call void @check1(i1 false) [[ATTR1:#.*]]
; CHECK-NEXT: unreachable
; CHECK: bb_false:
; CHECK-NEXT: tail call void @check2(i1 true) [[ATTR1]]
; CHECK-NEXT: unreachable
;
bb:
%tmp36 = icmp sgt i64 %tmp35, 0
br i1 %tmp36, label %bb_true, label %bb_false
bb_true:
%tmp47 = icmp slt i64 %tmp35, 0
tail call void @check1(i1 %tmp47) #4
unreachable
bb_false:
%tmp48 = icmp sle i64 %tmp35, 0
tail call void @check2(i1 %tmp48) #4
unreachable
}
; This is the same as test1 but with a diamond to ensure we
; get %tmp36 from both true and false BBs.
define void @test2(i64 %tmp35, i1 %inner_cmp) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[TMP36:%.*]] = icmp sgt i64 [[TMP35:%.*]], 0
; CHECK-NEXT: br i1 [[TMP36]], label [[BB_TRUE:%.*]], label [[BB_FALSE:%.*]]
; CHECK: bb_true:
; CHECK-NEXT: br i1 [[INNER_CMP:%.*]], label [[INNER_TRUE:%.*]], label [[INNER_FALSE:%.*]]
; CHECK: inner_true:
; CHECK-NEXT: br label [[MERGE:%.*]]
; CHECK: inner_false:
; CHECK-NEXT: br label [[MERGE]]
; CHECK: merge:
; CHECK-NEXT: tail call void @check1(i1 false)
; CHECK-NEXT: unreachable
; CHECK: bb_false:
; CHECK-NEXT: tail call void @check2(i1 true) [[ATTR1]]
; CHECK-NEXT: unreachable
;
bb:
%tmp36 = icmp sgt i64 %tmp35, 0
br i1 %tmp36, label %bb_true, label %bb_false
bb_true:
br i1 %inner_cmp, label %inner_true, label %inner_false
inner_true:
br label %merge
inner_false:
br label %merge
merge:
%tmp47 = icmp slt i64 %tmp35, 0
tail call void @check1(i1 %tmp47) #0
unreachable
bb_false:
%tmp48 = icmp sle i64 %tmp35, 0
tail call void @check2(i1 %tmp48) #4
unreachable
}
; Make sure binary operator transfer functions are run when RHS is non-constant
define i1 @test3(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 10
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 10
br i1 %cmp2, label %cont2, label %out
cont2:
%add = add i32 %x, %y
%cmp3 = icmp ult i32 %add, 25
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ]
ret i1 %ret
}
; Same as previous but make sure nobody gets over-zealous
define i1 @test4(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test4(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[ADD]], 15
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: [[RET:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ true, [[CONT1]] ], [ [[CMP3]], [[CONT2]] ]
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
%cmp1 = icmp ult i32 %x, 10
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 10
br i1 %cmp2, label %cont2, label %out
cont2:
%add = add i32 %x, %y
%cmp3 = icmp ult i32 %add, 15
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ]
ret i1 %ret
}
; Make sure binary operator transfer functions are run when RHS is non-constant
define i1 @test5(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 5
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 5
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[SHIFTED:%.*]] = shl nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 5
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 5
br i1 %cmp2, label %cont2, label %out
cont2:
%shifted = shl i32 %x, %y
%cmp3 = icmp ult i32 %shifted, 65536
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ]
ret i1 %ret
}
; Same as previous but make sure nobody gets over-zealous
define i1 @test6(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test6(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 5
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 15
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[SHIFTED:%.*]] = shl nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[SHIFTED]], 65536
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: [[RET:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ true, [[CONT1]] ], [ [[CMP3]], [[CONT2]] ]
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
%cmp1 = icmp ult i32 %x, 5
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 15
br i1 %cmp2, label %cont2, label %out
cont2:
%shifted = shl i32 %x, %y
%cmp3 = icmp ult i32 %shifted, 65536
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ]
ret i1 %ret
}
define i1 @test7(i32 %a, i32 %b) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], [[B]]
; CHECK-NEXT: [[RES:%.*]] = icmp sge i32 [[ADD]], 0
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ]
; CHECK-NEXT: ret i1 [[IV]]
;
begin:
%cmp0 = icmp sge i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%add = add i32 %a, %b
%res = icmp sge i32 %add, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test8(i32 %a, i32 %b) {
; CHECK-LABEL: @test8(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[A]], [[B]]
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret i1 true
;
begin:
%cmp0 = icmp sge i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%add = add nsw i32 %a, %b
%res = icmp sge i32 %add, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test10(i32 %a, i32 %b) {
; CHECK-LABEL: @test10(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[A:%.*]], -256
; CHECK-NEXT: br i1 [[CMP]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[ADD:%.*]] = add i32 [[A]], [[B:%.*]]
; CHECK-NEXT: [[RES:%.*]] = icmp uge i32 [[ADD]], -256
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ]
; CHECK-NEXT: ret i1 [[IV]]
;
begin:
%cmp = icmp uge i32 %a, 4294967040
br i1 %cmp, label %bb, label %exit
bb:
%add = add i32 %a, %b
%res = icmp uge i32 %add, 4294967040
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test11(i32 %a, i32 %b) {
; CHECK-LABEL: @test11(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[A:%.*]], -256
; CHECK-NEXT: br i1 [[CMP]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], [[B:%.*]]
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret i1 true
;
begin:
%cmp = icmp uge i32 %a, 4294967040
br i1 %cmp, label %bb, label %exit
bb:
%add = add nuw i32 %a, %b
%res = icmp uge i32 %add, 4294967040
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test12(i32 %x) {
; CHECK-LABEL: @test12(
; CHECK-NEXT: [[ZEXT:%.*]] = zext i32 [[X:%.*]] to i64
; CHECK-NEXT: [[MUL:%.*]] = mul nuw nsw i64 [[ZEXT]], 7
; CHECK-NEXT: [[SHR:%.*]] = lshr i64 [[MUL]], 32
; CHECK-NEXT: [[TRUNC:%.*]] = trunc i64 [[SHR]] to i32
; CHECK-NEXT: ret i1 true
;
%zext = zext i32 %x to i64
%mul = mul nuw i64 %zext, 7
%shr = lshr i64 %mul, 32
%trunc = trunc i64 %shr to i32
%cmp = icmp ult i32 %trunc, 7
ret i1 %cmp
}
define i1 @test13(i8 %x, i64* %p) {
; CHECK-LABEL: @test13(
; CHECK-NEXT: [[ZEXT:%.*]] = zext i8 [[X:%.*]] to i64
; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i64 [[ZEXT]], 128
; CHECK-NEXT: store i64 [[ADD]], i64* [[P:%.*]], align 8
; CHECK-NEXT: ret i1 true
;
%zext = zext i8 %x to i64
%add = add nuw nsw i64 %zext, 128
%cmp = icmp ult i64 %add, 384
; Without this extra use, InstSimplify could handle this
store i64 %add, i64* %p
ret i1 %cmp
}
define i1 @test14(i32 %a, i32 %b) {
; CHECK-LABEL: @test14(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[RES:%.*]] = icmp sge i32 [[SUB]], 0
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ]
; CHECK-NEXT: ret i1 [[IV]]
;
begin:
%cmp0 = icmp sge i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%sub = sub i32 %a, %b
%res = icmp sge i32 %sub, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test15(i32 %a, i32 %b) {
; CHECK-LABEL: @test15(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[RES:%.*]] = icmp sge i32 [[SUB]], 0
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ]
; CHECK-NEXT: ret i1 [[IV]]
;
begin:
%cmp0 = icmp sge i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%sub = sub nsw i32 %a, %b
%res = icmp sge i32 %sub, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test16(i32 %a, i32 %b) {
; CHECK-LABEL: @test16(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[SUB:%.*]] = sub nuw nsw i32 [[A]], [[B]]
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret i1 true
;
begin:
%cmp0 = icmp sge i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%sub = sub nuw i32 %a, %b
%res = icmp sge i32 %sub, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test17(i32 %a, i32 %b) {
; CHECK-LABEL: @test17(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sle i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[SUB:%.*]] = sub i32 [[A]], [[B]]
; CHECK-NEXT: [[RES:%.*]] = icmp sle i32 [[SUB]], 0
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ]
; CHECK-NEXT: ret i1 [[IV]]
;
begin:
%cmp0 = icmp sle i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%sub = sub i32 %a, %b
%res = icmp sle i32 %sub, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test18(i32 %a, i32 %b) {
; CHECK-LABEL: @test18(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sle i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[SUB:%.*]] = sub nuw i32 [[A]], [[B]]
; CHECK-NEXT: [[RES:%.*]] = icmp sle i32 [[SUB]], 0
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ]
; CHECK-NEXT: ret i1 [[IV]]
;
begin:
%cmp0 = icmp sle i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%sub = sub nuw i32 %a, %b
%res = icmp sle i32 %sub, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test19(i32 %a, i32 %b) {
; CHECK-LABEL: @test19(
; CHECK-NEXT: begin:
; CHECK-NEXT: [[CMP0:%.*]] = icmp sle i32 [[A:%.*]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0
; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[A]], [[B]]
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret i1 true
;
begin:
%cmp0 = icmp sle i32 %a, 0
%cmp1 = icmp sge i32 %b, 0
%br = and i1 %cmp0, %cmp1
br i1 %br, label %bb, label %exit
bb:
%sub = sub nsw i32 %a, %b
%res = icmp sle i32 %sub, 0
br label %exit
exit:
%iv = phi i1 [ true, %begin ], [ %res, %bb ]
ret i1 %iv
}
define i1 @test_br_cmp_with_offset(i64 %idx) {
; CHECK-LABEL: @test_br_cmp_with_offset(
; CHECK-NEXT: [[IDX_OFF1:%.*]] = add i64 [[IDX:%.*]], -5
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i64 [[IDX_OFF1]], 3
; CHECK-NEXT: br i1 [[CMP1]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: [[IDX_OFF2:%.*]] = add nsw i64 [[IDX]], -1
; CHECK-NEXT: ret i1 true
; CHECK: if.false:
; CHECK-NEXT: ret i1 undef
;
%idx.off1 = add i64 %idx, -5
%cmp1 = icmp ult i64 %idx.off1, 3
br i1 %cmp1, label %if.true, label %if.false
if.true:
%idx.off2 = add i64 %idx, -1
%cmp2 = icmp ult i64 %idx.off2, 10
ret i1 %cmp2
if.false:
ret i1 undef
}
define i1 @test_assume_cmp_with_offset(i64 %idx) {
; CHECK-LABEL: @test_assume_cmp_with_offset(
; CHECK-NEXT: [[IDX_OFF1:%.*]] = add i64 [[IDX:%.*]], -5
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i64 [[IDX_OFF1]], 3
; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP1]])
; CHECK-NEXT: [[IDX_OFF2:%.*]] = add nsw i64 [[IDX]], -1
; CHECK-NEXT: ret i1 true
;
%idx.off1 = add i64 %idx, -5
%cmp1 = icmp ult i64 %idx.off1, 3
tail call void @llvm.assume(i1 %cmp1)
%idx.off2 = add i64 %idx, -1
%cmp2 = icmp ult i64 %idx.off2, 10
ret i1 %cmp2
}
define void @test_cmp_phi(i8 %a) {
; CHECK-LABEL: @test_cmp_phi(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[C0:%.*]] = icmp ult i8 [[A:%.*]], 2
; CHECK-NEXT: br i1 [[C0]], label [[LOOP:%.*]], label [[EXIT:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[P:%.*]] = phi i8 [ [[A]], [[ENTRY:%.*]] ], [ [[B:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[C1:%.*]] = icmp ne i8 [[P]], 0
; CHECK-NEXT: [[C4:%.*]] = call i1 @get_bool()
; CHECK-NEXT: [[B]] = zext i1 [[C4]] to i8
; CHECK-NEXT: br i1 [[C1]], label [[LOOP]], label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
%c0 = icmp ult i8 %a, 2
br i1 %c0, label %loop, label %exit
loop:
%p = phi i8 [ %a, %entry ], [ %b, %loop ]
%c1 = icmp ne i8 %p, 0
%c2 = icmp ne i8 %p, 2
%c3 = and i1 %c1, %c2
%c4 = call i1 @get_bool()
%b = zext i1 %c4 to i8
br i1 %c3, label %loop, label %exit
exit:
ret void
}
declare i1 @get_bool()
define void @test_icmp_or_ult(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_or_ult(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[OR]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: [[CMP4:%.*]] = icmp uge i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP4]])
; CHECK-NEXT: [[CMP5:%.*]] = icmp uge i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP5]])
; CHECK-NEXT: ret void
;
entry:
%or = or i32 %a, %b
%cmp = icmp ult i32 %or, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp ult i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp ult i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp uge i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp uge i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_or_ule(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_or_ule(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ule i32 [[OR]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: [[CMP4:%.*]] = icmp ugt i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP4]])
; CHECK-NEXT: [[CMP5:%.*]] = icmp ugt i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP5]])
; CHECK-NEXT: ret void
;
entry:
%or = or i32 %a, %b
%cmp = icmp ule i32 %or, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp ule i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp ule i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp ugt i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp ugt i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_or_ugt(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_or_ugt(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[OR]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP2]])
; CHECK-NEXT: [[CMP3:%.*]] = icmp ugt i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: ret void
;
entry:
%or = or i32 %a, %b
%cmp = icmp ugt i32 %or, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp ugt i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp ugt i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp ule i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp ule i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_or_uge(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_or_uge(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[OR]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: [[CMP2:%.*]] = icmp uge i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP2]])
; CHECK-NEXT: [[CMP3:%.*]] = icmp uge i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: ret void
;
entry:
%or = or i32 %a, %b
%cmp = icmp uge i32 %or, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp uge i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp uge i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp ult i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp ult i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_or_slt(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_or_slt(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[OR]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP2]])
; CHECK-NEXT: [[CMP3:%.*]] = icmp slt i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: [[CMP4:%.*]] = icmp sge i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP4]])
; CHECK-NEXT: [[CMP5:%.*]] = icmp sge i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP5]])
; CHECK-NEXT: ret void
;
entry:
%or = or i32 %a, %b
%cmp = icmp slt i32 %or, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp slt i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp slt i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp sge i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp sge i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_and_ugt(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_and_ugt(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[AND]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: [[CMP4:%.*]] = icmp ule i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP4]])
; CHECK-NEXT: [[CMP5:%.*]] = icmp ule i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP5]])
; CHECK-NEXT: ret void
;
entry:
%and = and i32 %a, %b
%cmp = icmp ugt i32 %and, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp ugt i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp ugt i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp ule i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp ule i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_and_uge(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_and_uge(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[AND]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: [[CMP4:%.*]] = icmp ult i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP4]])
; CHECK-NEXT: [[CMP5:%.*]] = icmp ult i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP5]])
; CHECK-NEXT: ret void
;
entry:
%and = and i32 %a, %b
%cmp = icmp uge i32 %and, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp uge i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp uge i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp ult i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp ult i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_and_ult(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_and_ult(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[AND]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP2]])
; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: ret void
;
entry:
%and = and i32 %a, %b
%cmp = icmp ult i32 %and, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp ult i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp ult i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp uge i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp uge i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_and_sgt(i32 %a, i32 %b) {
; CHECK-LABEL: @test_icmp_and_sgt(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[AND]], 42
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP2]])
; CHECK-NEXT: [[CMP3:%.*]] = icmp sgt i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: [[CMP4:%.*]] = icmp sle i32 [[A]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP4]])
; CHECK-NEXT: [[CMP5:%.*]] = icmp sle i32 [[B]], 42
; CHECK-NEXT: call void @check1(i1 [[CMP5]])
; CHECK-NEXT: ret void
;
entry:
%and = and i32 %a, %b
%cmp = icmp sgt i32 %and, 42
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp sgt i32 %a, 42
call void @check1(i1 %cmp2)
%cmp3 = icmp sgt i32 %b, 42
call void @check1(i1 %cmp3)
ret void
if.false:
%cmp4 = icmp sle i32 %a, 42
call void @check1(i1 %cmp4)
%cmp5 = icmp sle i32 %b, 42
call void @check1(i1 %cmp5)
ret void
}
define void @test_icmp_mask_two_values(i32 %a) {
; CHECK-LABEL: @test_icmp_mask_two_values(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], -2
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 10
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: call void @check1(i1 false)
; CHECK-NEXT: call void @check1(i1 false)
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: ret void
;
%and = and i32 %a, -2
%cmp = icmp eq i32 %and, 10
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp uge i32 %a, 10
call void @check1(i1 %cmp2)
%cmp3 = icmp ule i32 %a, 11
call void @check1(i1 %cmp3)
%cmp4 = icmp ult i32 %a, 10
call void @check1(i1 %cmp4)
%cmp5 = icmp ugt i32 %a, 11
call void @check1(i1 %cmp5)
ret void
if.false:
ret void
}
define void @test_icmp_mask_bit_set(i32 %a) {
; CHECK-LABEL: @test_icmp_mask_bit_set(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], 32
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 32
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: [[CMP3:%.*]] = icmp uge i32 [[A]], 33
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: ret void
;
%and = and i32 %a, 32
%cmp = icmp eq i32 %and, 32
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp uge i32 %a, 32
call void @check1(i1 %cmp2)
%cmp3 = icmp uge i32 %a, 33
call void @check1(i1 %cmp3)
ret void
if.false:
ret void
}
define void @test_icmp_mask_bit_unset(i32 %a) {
; CHECK-LABEL: @test_icmp_mask_bit_unset(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], 32
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: call void @check1(i1 true)
; CHECK-NEXT: [[CMP3:%.*]] = icmp ule i32 [[A]], -34
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: ret void
;
%and = and i32 %a, 32
%cmp = icmp eq i32 %and, 0
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp ule i32 %a, -33
call void @check1(i1 %cmp2)
%cmp3 = icmp ule i32 %a, -34
call void @check1(i1 %cmp3)
ret void
if.false:
ret void
}
define void @test_icmp_mask_wrong_predicate(i32 %a) {
; CHECK-LABEL: @test_icmp_mask_wrong_predicate(
; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], -2
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[AND]], 10
; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.true:
; CHECK-NEXT: [[CMP2:%.*]] = icmp uge i32 [[A]], 10
; CHECK-NEXT: call void @check1(i1 [[CMP2]])
; CHECK-NEXT: [[CMP3:%.*]] = icmp ule i32 [[A]], 11
; CHECK-NEXT: call void @check1(i1 [[CMP3]])
; CHECK-NEXT: [[CMP4:%.*]] = icmp ult i32 [[A]], 10
; CHECK-NEXT: call void @check1(i1 [[CMP4]])
; CHECK-NEXT: [[CMP5:%.*]] = icmp ugt i32 [[A]], 11
; CHECK-NEXT: call void @check1(i1 [[CMP5]])
; CHECK-NEXT: ret void
; CHECK: if.false:
; CHECK-NEXT: ret void
;
%and = and i32 %a, -2
%cmp = icmp ne i32 %and, 10
br i1 %cmp, label %if.true, label %if.false
if.true:
%cmp2 = icmp uge i32 %a, 10
call void @check1(i1 %cmp2)
%cmp3 = icmp ule i32 %a, 11
call void @check1(i1 %cmp3)
%cmp4 = icmp ult i32 %a, 10
call void @check1(i1 %cmp4)
%cmp5 = icmp ugt i32 %a, 11
call void @check1(i1 %cmp5)
ret void
if.false:
ret void
}
attributes #4 = { noreturn }