| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -instcombine < %s | FileCheck %s |
| |
| ; This is the canonical form for a type-changing min/max. |
| define i64 @t1(i32 %a) { |
| ; CHECK-LABEL: @t1( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %a, 5 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 %a, i32 5 |
| ; CHECK-NEXT: [[TMP3:%.*]] = sext i32 [[TMP2]] to i64 |
| ; CHECK-NEXT: ret i64 [[TMP3]] |
| ; |
| %1 = icmp slt i32 %a, 5 |
| %2 = select i1 %1, i32 %a, i32 5 |
| %3 = sext i32 %2 to i64 |
| ret i64 %3 |
| } |
| |
| ; Check this is converted into canonical form, as above. |
| define i64 @t2(i32 %a) { |
| ; CHECK-LABEL: @t2( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %a, 5 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 %a, i32 5 |
| ; CHECK-NEXT: [[TMP3:%.*]] = sext i32 [[TMP2]] to i64 |
| ; CHECK-NEXT: ret i64 [[TMP3]] |
| ; |
| %1 = icmp slt i32 %a, 5 |
| %2 = sext i32 %a to i64 |
| %3 = select i1 %1, i64 %2, i64 5 |
| ret i64 %3 |
| } |
| |
| ; Same as @t2, with flipped operands and zext instead of sext. |
| define i64 @t3(i32 %a) { |
| ; CHECK-LABEL: @t3( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 %a, 5 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 %a, i32 5 |
| ; CHECK-NEXT: [[TMP3:%.*]] = zext i32 [[TMP2]] to i64 |
| ; CHECK-NEXT: ret i64 [[TMP3]] |
| ; |
| %1 = icmp ult i32 %a, 5 |
| %2 = zext i32 %a to i64 |
| %3 = select i1 %1, i64 5, i64 %2 |
| ret i64 %3 |
| } |
| |
| ; Same again, with trunc. |
| define i32 @t4(i64 %a) { |
| ; CHECK-LABEL: @t4( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i64 %a, 5 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i64 %a, i64 5 |
| ; CHECK-NEXT: [[TMP3:%.*]] = trunc i64 [[TMP2]] to i32 |
| ; CHECK-NEXT: ret i32 [[TMP3]] |
| ; |
| %1 = icmp slt i64 %a, 5 |
| %2 = trunc i64 %a to i32 |
| %3 = select i1 %1, i32 %2, i32 5 |
| ret i32 %3 |
| } |
| |
| ; Same as @t3, but with mismatched signedness between icmp and zext. |
| ; InstCombine should leave this alone. |
| define i64 @t5(i32 %a) { |
| ; CHECK-LABEL: @t5( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %a, 5 |
| ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 %a to i64 |
| ; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 5, i64 [[TMP2]] |
| ; CHECK-NEXT: ret i64 [[TMP3]] |
| ; |
| %1 = icmp slt i32 %a, 5 |
| %2 = zext i32 %a to i64 |
| %3 = select i1 %1, i64 5, i64 %2 |
| ret i64 %3 |
| } |
| |
| define float @t6(i32 %a) { |
| ; CHECK-LABEL: @t6( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %a, 0 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 %a, i32 0 |
| ; CHECK-NEXT: [[TMP3:%.*]] = sitofp i32 [[TMP2]] to float |
| ; CHECK-NEXT: ret float [[TMP3]] |
| ; |
| %1 = icmp slt i32 %a, 0 |
| %2 = select i1 %1, i32 %a, i32 0 |
| %3 = sitofp i32 %2 to float |
| ret float %3 |
| } |
| |
| define i16 @t7(i32 %a) { |
| ; CHECK-LABEL: @t7( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %a, -32768 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 %a, i32 -32768 |
| ; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[TMP2]] to i16 |
| ; CHECK-NEXT: ret i16 [[TMP3]] |
| ; |
| %1 = icmp slt i32 %a, -32768 |
| %2 = trunc i32 %a to i16 |
| %3 = select i1 %1, i16 %2, i16 -32768 |
| ret i16 %3 |
| } |
| |
| ; Just check for no infinite loop. InstSimplify liked to |
| ; "simplify" -32767 by removing all the sign bits, |
| ; which led to a canonicalization fight between different |
| ; parts of instcombine. |
| define i32 @t8(i64 %a, i32 %b) { |
| ; CHECK-LABEL: @t8( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i64 %a, -32767 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i64 %a, i64 -32767 |
| ; CHECK-NEXT: [[TMP3:%.*]] = trunc i64 [[TMP2]] to i32 |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp slt i32 %b, 42 |
| ; CHECK-NEXT: [[TMP5:%.*]] = select i1 [[TMP4]], i32 42, i32 [[TMP3]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp ne i32 [[TMP5]], %b |
| ; CHECK-NEXT: [[TMP7:%.*]] = zext i1 [[TMP6]] to i32 |
| ; CHECK-NEXT: ret i32 [[TMP7]] |
| ; |
| %1 = icmp slt i64 %a, -32767 |
| %2 = select i1 %1, i64 %a, i64 -32767 |
| %3 = trunc i64 %2 to i32 |
| %4 = icmp slt i32 %b, 42 |
| %5 = select i1 %4, i32 42, i32 %3 |
| %6 = icmp ne i32 %5, %b |
| %7 = zext i1 %6 to i32 |
| ret i32 %7 |
| } |
| |
| ; Ensure this doesn't get converted to a min/max. |
| define i64 @t9(i32 %a) { |
| ; CHECK-LABEL: @t9( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 %a, -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = sext i32 %a to i64 |
| ; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP1]], i64 [[TMP2]], i64 4294967295 |
| ; CHECK-NEXT: ret i64 [[TMP3]] |
| ; |
| %1 = icmp sgt i32 %a, -1 |
| %2 = sext i32 %a to i64 |
| %3 = select i1 %1, i64 %2, i64 4294967295 |
| ret i64 %3 |
| } |
| |
| ; Reuse the first 2 bitcasts as the select operands. |
| |
| define <4 x i32> @bitcasts_fcmp_1(<2 x i64> %a, <2 x i64> %b) { |
| ; CHECK-LABEL: @bitcasts_fcmp_1( |
| ; CHECK-NEXT: [[T0:%.*]] = bitcast <2 x i64> %a to <4 x float> |
| ; CHECK-NEXT: [[T1:%.*]] = bitcast <2 x i64> %b to <4 x float> |
| ; CHECK-NEXT: [[T2:%.*]] = fcmp olt <4 x float> [[T1]], [[T0]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = select <4 x i1> [[T2]], <4 x float> [[T0]], <4 x float> [[T1]] |
| ; CHECK-NEXT: [[T5:%.*]] = bitcast <4 x float> [[TMP1]] to <4 x i32> |
| ; CHECK-NEXT: ret <4 x i32> [[T5]] |
| ; |
| %t0 = bitcast <2 x i64> %a to <4 x float> |
| %t1 = bitcast <2 x i64> %b to <4 x float> |
| %t2 = fcmp olt <4 x float> %t1, %t0 |
| %t3 = bitcast <2 x i64> %a to <4 x i32> |
| %t4 = bitcast <2 x i64> %b to <4 x i32> |
| %t5 = select <4 x i1> %t2, <4 x i32> %t3, <4 x i32> %t4 |
| ret <4 x i32> %t5 |
| } |
| |
| ; Switch cmp operand order. |
| |
| define <4 x i32> @bitcasts_fcmp_2(<2 x i64> %a, <2 x i64> %b) { |
| ; CHECK-LABEL: @bitcasts_fcmp_2( |
| ; CHECK-NEXT: [[T0:%.*]] = bitcast <2 x i64> %a to <4 x float> |
| ; CHECK-NEXT: [[T1:%.*]] = bitcast <2 x i64> %b to <4 x float> |
| ; CHECK-NEXT: [[T2:%.*]] = fcmp olt <4 x float> [[T0]], [[T1]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = select <4 x i1> [[T2]], <4 x float> [[T0]], <4 x float> [[T1]] |
| ; CHECK-NEXT: [[T5:%.*]] = bitcast <4 x float> [[TMP1]] to <4 x i32> |
| ; CHECK-NEXT: ret <4 x i32> [[T5]] |
| ; |
| %t0 = bitcast <2 x i64> %a to <4 x float> |
| %t1 = bitcast <2 x i64> %b to <4 x float> |
| %t2 = fcmp olt <4 x float> %t0, %t1 |
| %t3 = bitcast <2 x i64> %a to <4 x i32> |
| %t4 = bitcast <2 x i64> %b to <4 x i32> |
| %t5 = select <4 x i1> %t2, <4 x i32> %t3, <4 x i32> %t4 |
| ret <4 x i32> %t5 |
| } |
| |
| ; Integer cmp should have the same transforms. |
| |
| define <4 x float> @bitcasts_icmp(<2 x i64> %a, <2 x i64> %b) { |
| ; CHECK-LABEL: @bitcasts_icmp( |
| ; CHECK-NEXT: [[T0:%.*]] = bitcast <2 x i64> %a to <4 x i32> |
| ; CHECK-NEXT: [[T1:%.*]] = bitcast <2 x i64> %b to <4 x i32> |
| ; CHECK-NEXT: [[T2:%.*]] = icmp slt <4 x i32> [[T1]], [[T0]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = select <4 x i1> [[T2]], <4 x i32> [[T0]], <4 x i32> [[T1]] |
| ; CHECK-NEXT: [[T5:%.*]] = bitcast <4 x i32> [[TMP1]] to <4 x float> |
| ; CHECK-NEXT: ret <4 x float> [[T5]] |
| ; |
| %t0 = bitcast <2 x i64> %a to <4 x i32> |
| %t1 = bitcast <2 x i64> %b to <4 x i32> |
| %t2 = icmp slt <4 x i32> %t1, %t0 |
| %t3 = bitcast <2 x i64> %a to <4 x float> |
| %t4 = bitcast <2 x i64> %b to <4 x float> |
| %t5 = select <4 x i1> %t2, <4 x float> %t3, <4 x float> %t4 |
| ret <4 x float> %t5 |
| } |
| |
| ; SMIN(SMIN(X, 11), 92) -> SMIN(X, 11) |
| define i32 @test68(i32 %x) { |
| ; CHECK-LABEL: @test68( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %x, 11 |
| ; CHECK-NEXT: [[COND:%.*]] = select i1 [[TMP1]], i32 %x, i32 11 |
| ; CHECK-NEXT: ret i32 [[COND]] |
| ; |
| %cmp = icmp slt i32 11, %x |
| %cond = select i1 %cmp, i32 11, i32 %x |
| %cmp3 = icmp slt i32 92, %cond |
| %retval = select i1 %cmp3, i32 92, i32 %cond |
| ret i32 %retval |
| } |
| |
| define <2 x i32> @test68vec(<2 x i32> %x) { |
| ; CHECK-LABEL: @test68vec( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt <2 x i32> %x, <i32 11, i32 11> |
| ; CHECK-NEXT: [[COND:%.*]] = select <2 x i1> [[TMP1]], <2 x i32> %x, <2 x i32> <i32 11, i32 11> |
| ; CHECK-NEXT: ret <2 x i32> [[COND]] |
| ; |
| %cmp = icmp slt <2 x i32> <i32 11, i32 11>, %x |
| %cond = select <2 x i1> %cmp, <2 x i32> <i32 11, i32 11>, <2 x i32> %x |
| %cmp3 = icmp slt <2 x i32> <i32 92, i32 92>, %cond |
| %retval = select <2 x i1> %cmp3, <2 x i32> <i32 92, i32 92>, <2 x i32> %cond |
| ret <2 x i32> %retval |
| } |
| |
| ; MIN(MIN(X, 24), 83) -> MIN(X, 24) |
| define i32 @test69(i32 %x) { |
| ; CHECK-LABEL: @test69( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 %x, 24 |
| ; CHECK-NEXT: [[COND:%.*]] = select i1 [[TMP1]], i32 %x, i32 24 |
| ; CHECK-NEXT: ret i32 [[COND]] |
| ; |
| %cmp = icmp ult i32 24, %x |
| %cond = select i1 %cmp, i32 24, i32 %x |
| %cmp3 = icmp ult i32 83, %cond |
| %retval = select i1 %cmp3, i32 83, i32 %cond |
| ret i32 %retval |
| } |
| |
| ; SMAX(SMAX(X, 75), 36) -> SMAX(X, 75) |
| define i32 @test70(i32 %x) { |
| ; CHECK-LABEL: @test70( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 %x, 75 |
| ; CHECK-NEXT: [[COND:%.*]] = select i1 [[TMP1]], i32 %x, i32 75 |
| ; CHECK-NEXT: ret i32 [[COND]] |
| ; |
| %cmp = icmp slt i32 %x, 75 |
| %cond = select i1 %cmp, i32 75, i32 %x |
| %cmp3 = icmp slt i32 %cond, 36 |
| %retval = select i1 %cmp3, i32 36, i32 %cond |
| ret i32 %retval |
| } |
| |
| ; MAX(MAX(X, 68), 47) -> MAX(X, 68) |
| define i32 @test71(i32 %x) { |
| ; CHECK-LABEL: @test71( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 %x, 68 |
| ; CHECK-NEXT: [[COND:%.*]] = select i1 [[TMP1]], i32 %x, i32 68 |
| ; CHECK-NEXT: ret i32 [[COND]] |
| ; |
| %cmp = icmp ult i32 %x, 68 |
| %cond = select i1 %cmp, i32 68, i32 %x |
| %cmp3 = icmp ult i32 %cond, 47 |
| %retval = select i1 %cmp3, i32 47, i32 %cond |
| ret i32 %retval |
| } |
| |
| ; SMIN(SMIN(X, 92), 11) -> SMIN(X, 11) |
| define i32 @test72(i32 %x) { |
| ; CHECK-LABEL: @test72( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %x, 11 |
| ; CHECK-NEXT: [[RETVAL:%.*]] = select i1 [[TMP1]], i32 %x, i32 11 |
| ; CHECK-NEXT: ret i32 [[RETVAL]] |
| ; |
| %cmp = icmp sgt i32 %x, 92 |
| %cond = select i1 %cmp, i32 92, i32 %x |
| %cmp3 = icmp sgt i32 %cond, 11 |
| %retval = select i1 %cmp3, i32 11, i32 %cond |
| ret i32 %retval |
| } |
| |
| define <2 x i32> @test72vec(<2 x i32> %x) { |
| ; CHECK-LABEL: @test72vec( |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp slt <2 x i32> %x, <i32 11, i32 11> |
| ; CHECK-NEXT: [[RETVAL:%.*]] = select <2 x i1> [[TMP2]], <2 x i32> %x, <2 x i32> <i32 11, i32 11> |
| ; CHECK-NEXT: ret <2 x i32> [[RETVAL]] |
| ; |
| %cmp = icmp sgt <2 x i32> %x, <i32 92, i32 92> |
| %cond = select <2 x i1> %cmp, <2 x i32> <i32 92, i32 92>, <2 x i32> %x |
| %cmp3 = icmp sgt <2 x i32> %cond, <i32 11, i32 11> |
| %retval = select <2 x i1> %cmp3, <2 x i32> <i32 11, i32 11>, <2 x i32> %cond |
| ret <2 x i32> %retval |
| } |
| |
| ; MIN(MIN(X, 83), 24) -> MIN(X, 24) |
| define i32 @test73(i32 %x) { |
| ; CHECK-LABEL: @test73( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 %x, 24 |
| ; CHECK-NEXT: [[RETVAL:%.*]] = select i1 [[TMP1]], i32 %x, i32 24 |
| ; CHECK-NEXT: ret i32 [[RETVAL]] |
| ; |
| %cmp = icmp ugt i32 %x, 83 |
| %cond = select i1 %cmp, i32 83, i32 %x |
| %cmp3 = icmp ugt i32 %cond, 24 |
| %retval = select i1 %cmp3, i32 24, i32 %cond |
| ret i32 %retval |
| } |
| |
| ; SMAX(SMAX(X, 36), 75) -> SMAX(X, 75) |
| define i32 @test74(i32 %x) { |
| ; CHECK-LABEL: @test74( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 %x, 75 |
| ; CHECK-NEXT: [[RETVAL:%.*]] = select i1 [[TMP1]], i32 %x, i32 75 |
| ; CHECK-NEXT: ret i32 [[RETVAL]] |
| ; |
| %cmp = icmp slt i32 %x, 36 |
| %cond = select i1 %cmp, i32 36, i32 %x |
| %cmp3 = icmp slt i32 %cond, 75 |
| %retval = select i1 %cmp3, i32 75, i32 %cond |
| ret i32 %retval |
| } |
| |
| ; MAX(MAX(X, 47), 68) -> MAX(X, 68) |
| define i32 @test75(i32 %x) { |
| ; CHECK-LABEL: @test75( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 %x, 68 |
| ; CHECK-NEXT: [[RETVAL:%.*]] = select i1 [[TMP1]], i32 %x, i32 68 |
| ; CHECK-NEXT: ret i32 [[RETVAL]] |
| ; |
| %cmp = icmp ult i32 %x, 47 |
| %cond = select i1 %cmp, i32 47, i32 %x |
| %cmp3 = icmp ult i32 %cond, 68 |
| %retval = select i1 %cmp3, i32 68, i32 %cond |
| ret i32 %retval |
| } |
| |
| ; The next 4 tests are value clamping with constants: |
| ; https://llvm.org/bugs/show_bug.cgi?id=31693 |
| |
| ; (X <s C1) ? C1 : SMIN(X, C2) ==> SMAX(SMIN(X, C2), C1) |
| |
| define i32 @clamp_signed1(i32 %x) { |
| ; CHECK-LABEL: @clamp_signed1( |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 %x, 255 |
| ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], i32 %x, i32 255 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[MIN]], 15 |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[TMP1]], i32 [[MIN]], i32 15 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %cmp2 = icmp slt i32 %x, 255 |
| %min = select i1 %cmp2, i32 %x, i32 255 |
| %cmp1 = icmp slt i32 %x, 15 |
| %r = select i1 %cmp1, i32 15, i32 %min |
| ret i32 %r |
| } |
| |
| ; (X >s C1) ? C1 : SMAX(X, C2) ==> SMIN(SMAX(X, C2), C1) |
| |
| define i32 @clamp_signed2(i32 %x) { |
| ; CHECK-LABEL: @clamp_signed2( |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 %x, 15 |
| ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], i32 %x, i32 15 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[MAX]], 255 |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[TMP1]], i32 [[MAX]], i32 255 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %cmp2 = icmp sgt i32 %x, 15 |
| %max = select i1 %cmp2, i32 %x, i32 15 |
| %cmp1 = icmp sgt i32 %x, 255 |
| %r = select i1 %cmp1, i32 255, i32 %max |
| ret i32 %r |
| } |
| |
| ; (X <u C1) ? C1 : UMIN(X, C2) ==> UMAX(UMIN(X, C2), C1) |
| |
| define i32 @clamp_unsigned1(i32 %x) { |
| ; CHECK-LABEL: @clamp_unsigned1( |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 %x, 255 |
| ; CHECK-NEXT: [[MIN:%.*]] = select i1 [[CMP2]], i32 %x, i32 255 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[MIN]], 15 |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[TMP1]], i32 [[MIN]], i32 15 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %cmp2 = icmp ult i32 %x, 255 |
| %min = select i1 %cmp2, i32 %x, i32 255 |
| %cmp1 = icmp ult i32 %x, 15 |
| %r = select i1 %cmp1, i32 15, i32 %min |
| ret i32 %r |
| } |
| |
| ; (X >u C1) ? C1 : UMAX(X, C2) ==> UMIN(UMAX(X, C2), C1) |
| |
| define i32 @clamp_unsigned2(i32 %x) { |
| ; CHECK-LABEL: @clamp_unsigned2( |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 %x, 15 |
| ; CHECK-NEXT: [[MAX:%.*]] = select i1 [[CMP2]], i32 %x, i32 15 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[MAX]], 255 |
| ; CHECK-NEXT: [[R:%.*]] = select i1 [[TMP1]], i32 [[MAX]], i32 255 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %cmp2 = icmp ugt i32 %x, 15 |
| %max = select i1 %cmp2, i32 %x, i32 15 |
| %cmp1 = icmp ugt i32 %x, 255 |
| %r = select i1 %cmp1, i32 255, i32 %max |
| ret i32 %r |
| } |
| |
| ; The next 3 min tests should canonicalize to the same form...and not infinite loop. |
| |
| define double @PR31751_umin1(i32 %x) { |
| ; CHECK-LABEL: @PR31751_umin1( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 %x, 2147483647 |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[TMP1]], i32 %x, i32 2147483647 |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[SEL]] to double |
| ; CHECK-NEXT: ret double [[CONV]] |
| ; |
| %cmp = icmp slt i32 %x, 0 |
| %sel = select i1 %cmp, i32 2147483647, i32 %x |
| %conv = sitofp i32 %sel to double |
| ret double %conv |
| } |
| |
| define double @PR31751_umin2(i32 %x) { |
| ; CHECK-LABEL: @PR31751_umin2( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 %x, 2147483647 |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 %x, i32 2147483647 |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[SEL]] to double |
| ; CHECK-NEXT: ret double [[CONV]] |
| ; |
| %cmp = icmp ult i32 %x, 2147483647 |
| %sel = select i1 %cmp, i32 %x, i32 2147483647 |
| %conv = sitofp i32 %sel to double |
| ret double %conv |
| } |
| |
| define double @PR31751_umin3(i32 %x) { |
| ; CHECK-LABEL: @PR31751_umin3( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 %x, 2147483647 |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[TMP1]], i32 %x, i32 2147483647 |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[SEL]] to double |
| ; CHECK-NEXT: ret double [[CONV]] |
| ; |
| %cmp = icmp ugt i32 %x, 2147483647 |
| %sel = select i1 %cmp, i32 2147483647, i32 %x |
| %conv = sitofp i32 %sel to double |
| ret double %conv |
| } |
| |
| ; The next 3 max tests should canonicalize to the same form...and not infinite loop. |
| |
| define double @PR31751_umax1(i32 %x) { |
| ; CHECK-LABEL: @PR31751_umax1( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 %x, -2147483648 |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[TMP1]], i32 %x, i32 -2147483648 |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[SEL]] to double |
| ; CHECK-NEXT: ret double [[CONV]] |
| ; |
| %cmp = icmp sgt i32 %x, -1 |
| %sel = select i1 %cmp, i32 2147483648, i32 %x |
| %conv = sitofp i32 %sel to double |
| ret double %conv |
| } |
| |
| define double @PR31751_umax2(i32 %x) { |
| ; CHECK-LABEL: @PR31751_umax2( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 %x, -2147483648 |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 %x, i32 -2147483648 |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[SEL]] to double |
| ; CHECK-NEXT: ret double [[CONV]] |
| ; |
| %cmp = icmp ugt i32 %x, 2147483648 |
| %sel = select i1 %cmp, i32 %x, i32 2147483648 |
| %conv = sitofp i32 %sel to double |
| ret double %conv |
| } |
| |
| define double @PR31751_umax3(i32 %x) { |
| ; CHECK-LABEL: @PR31751_umax3( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 %x, -2147483648 |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[TMP1]], i32 %x, i32 -2147483648 |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[SEL]] to double |
| ; CHECK-NEXT: ret double [[CONV]] |
| ; |
| %cmp = icmp ult i32 %x, 2147483648 |
| %sel = select i1 %cmp, i32 2147483648, i32 %x |
| %conv = sitofp i32 %sel to double |
| ret double %conv |
| } |
| |
| ; The icmp/select form a canonical smax, so don't hide that by folding the final bitcast into the select. |
| |
| define float @bitcast_scalar_smax(float %x, float %y) { |
| ; CHECK-LABEL: @bitcast_scalar_smax( |
| ; CHECK-NEXT: [[BCX:%.*]] = bitcast float %x to i32 |
| ; CHECK-NEXT: [[BCY:%.*]] = bitcast float %y to i32 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[BCX]], [[BCY]] |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 [[BCX]], i32 [[BCY]] |
| ; CHECK-NEXT: [[BCS:%.*]] = bitcast i32 [[SEL]] to float |
| ; CHECK-NEXT: ret float [[BCS]] |
| ; |
| %bcx = bitcast float %x to i32 |
| %bcy = bitcast float %y to i32 |
| %cmp = icmp sgt i32 %bcx, %bcy |
| %sel = select i1 %cmp, i32 %bcx, i32 %bcy |
| %bcs = bitcast i32 %sel to float |
| ret float %bcs |
| } |
| |
| ; FIXME: Create a canonical umax by bitcasting the select. |
| |
| define float @bitcast_scalar_umax(float %x, float %y) { |
| ; CHECK-LABEL: @bitcast_scalar_umax( |
| ; CHECK-NEXT: [[BCX:%.*]] = bitcast float %x to i32 |
| ; CHECK-NEXT: [[BCY:%.*]] = bitcast float %y to i32 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[BCX]], [[BCY]] |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], float %x, float %y |
| ; CHECK-NEXT: ret float [[SEL]] |
| ; |
| %bcx = bitcast float %x to i32 |
| %bcy = bitcast float %y to i32 |
| %cmp = icmp ugt i32 %bcx, %bcy |
| %sel = select i1 %cmp, float %x, float %y |
| ret float %sel |
| } |
| |
| ; PR32306 - https://bugs.llvm.org/show_bug.cgi?id=32306 |
| ; The icmp/select form a canonical smin, so don't hide that by folding the final bitcast into the select. |
| |
| define <8 x float> @bitcast_vector_smin(<8 x float> %x, <8 x float> %y) { |
| ; CHECK-LABEL: @bitcast_vector_smin( |
| ; CHECK-NEXT: [[BCX:%.*]] = bitcast <8 x float> %x to <8 x i32> |
| ; CHECK-NEXT: [[BCY:%.*]] = bitcast <8 x float> %y to <8 x i32> |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <8 x i32> [[BCX]], [[BCY]] |
| ; CHECK-NEXT: [[SEL:%.*]] = select <8 x i1> [[CMP]], <8 x i32> [[BCX]], <8 x i32> [[BCY]] |
| ; CHECK-NEXT: [[BCS:%.*]] = bitcast <8 x i32> [[SEL]] to <8 x float> |
| ; CHECK-NEXT: ret <8 x float> [[BCS]] |
| ; |
| %bcx = bitcast <8 x float> %x to <8 x i32> |
| %bcy = bitcast <8 x float> %y to <8 x i32> |
| %cmp = icmp slt <8 x i32> %bcx, %bcy |
| %sel = select <8 x i1> %cmp, <8 x i32> %bcx, <8 x i32> %bcy |
| %bcs = bitcast <8 x i32> %sel to <8 x float> |
| ret <8 x float> %bcs |
| } |
| |
| ; FIXME: Create a canonical umin by bitcasting the select. |
| |
| define <8 x float> @bitcast_vector_umin(<8 x float> %x, <8 x float> %y) { |
| ; CHECK-LABEL: @bitcast_vector_umin( |
| ; CHECK-NEXT: [[BCX:%.*]] = bitcast <8 x float> %x to <8 x i32> |
| ; CHECK-NEXT: [[BCY:%.*]] = bitcast <8 x float> %y to <8 x i32> |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <8 x i32> [[BCX]], [[BCY]] |
| ; CHECK-NEXT: [[SEL:%.*]] = select <8 x i1> [[CMP]], <8 x float> %x, <8 x float> %y |
| ; CHECK-NEXT: ret <8 x float> [[SEL]] |
| ; |
| %bcx = bitcast <8 x float> %x to <8 x i32> |
| %bcy = bitcast <8 x float> %y to <8 x i32> |
| %cmp = icmp slt <8 x i32> %bcx, %bcy |
| %sel = select <8 x i1> %cmp, <8 x float> %x, <8 x float> %y |
| ret <8 x float> %sel |
| } |
| |