diff --git a/llvm/test/Transforms/InstCombine/abs-intrinsic.ll b/llvm/test/Transforms/InstCombine/abs-intrinsic.ll index 9e64aea9dabe..b1d60d5877a5 100644 --- a/llvm/test/Transforms/InstCombine/abs-intrinsic.ll +++ b/llvm/test/Transforms/InstCombine/abs-intrinsic.ll @@ -4,47 +4,6 @@ declare i32 @llvm.abs.i32(i32, i1) declare <4 x i32> @llvm.abs.v4i32(<4 x i32>, i1) -define i1 @abs_nsw_must_be_positive(i32 %x) { -; CHECK-LABEL: @abs_nsw_must_be_positive( -; CHECK-NEXT: ret i1 true -; - %abs = call i32 @llvm.abs.i32(i32 %x, i1 true) - %c2 = icmp sge i32 %abs, 0 - ret i1 %c2 -} - -define <4 x i1> @abs_nsw_must_be_positive_vec(<4 x i32> %x) { -; CHECK-LABEL: @abs_nsw_must_be_positive_vec( -; CHECK-NEXT: ret <4 x i1> -; - %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %x, i1 true) - %c2 = icmp sge <4 x i32> %abs, zeroinitializer - ret <4 x i1> %c2 -} - -; Negative test, no nsw provides no information about the sign bit of the result. -define i1 @abs_nonsw(i32 %x) { -; CHECK-LABEL: @abs_nonsw( -; CHECK-NEXT: [[ABS:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 false) -; CHECK-NEXT: [[C2:%.*]] = icmp sgt i32 [[ABS]], -1 -; CHECK-NEXT: ret i1 [[C2]] -; - %abs = call i32 @llvm.abs.i32(i32 %x, i1 false) - %c2 = icmp sge i32 %abs, 0 - ret i1 %c2 -} - -define <4 x i1> @abs_nonsw_vec(<4 x i32> %x) { -; CHECK-LABEL: @abs_nonsw_vec( -; CHECK-NEXT: [[ABS:%.*]] = call <4 x i32> @llvm.abs.v4i32(<4 x i32> [[X:%.*]], i1 false) -; CHECK-NEXT: [[C2:%.*]] = icmp sgt <4 x i32> [[ABS]], -; CHECK-NEXT: ret <4 x i1> [[C2]] -; - %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %x, i1 false) - %c2 = icmp sge <4 x i32> %abs, zeroinitializer - ret <4 x i1> %c2 -} - ; abs preserves trailing zeros so the second and is unneeded define i32 @abs_trailing_zeros(i32 %x) { ; CHECK-LABEL: @abs_trailing_zeros( @@ -126,46 +85,6 @@ define <4 x i32> @abs_signbits_vec(<4 x i30> %x) { ret <4 x i32> %add } -define i1 @abs_known_positive_input_compare(i31 %x) { -; CHECK-LABEL: @abs_known_positive_input_compare( -; CHECK-NEXT: ret i1 true -; - %zext = zext i31 %x to i32 - %abs = call i32 @llvm.abs.i32(i32 %zext, i1 false) - %c2 = icmp sge i32 %abs, 0 - ret i1 %c2 -} - -define <4 x i1> @abs_known_positive_input_compare_vec(<4 x i31> %x) { -; CHECK-LABEL: @abs_known_positive_input_compare_vec( -; CHECK-NEXT: ret <4 x i1> -; - %zext = zext <4 x i31> %x to <4 x i32> - %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %zext, i1 false) - %c2 = icmp sge <4 x i32> %abs, zeroinitializer - ret <4 x i1> %c2 -} - -define i1 @abs_known_not_int_min(i32 %x) { -; CHECK-LABEL: @abs_known_not_int_min( -; CHECK-NEXT: ret i1 true -; - %or = or i32 %x, 1 - %abs = call i32 @llvm.abs.i32(i32 %or, i1 false) - %c2 = icmp sge i32 %abs, 0 - ret i1 %c2 -} - -define <4 x i1> @abs_known_not_int_min_vec(<4 x i32> %x) { -; CHECK-LABEL: @abs_known_not_int_min_vec( -; CHECK-NEXT: ret <4 x i1> -; - %or = or <4 x i32> %x, - %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %or, i1 false) - %c2 = icmp sge <4 x i32> %abs, zeroinitializer - ret <4 x i1> %c2 -} - define i32 @abs_of_neg(i32 %x) { ; CHECK-LABEL: @abs_of_neg( ; CHECK-NEXT: [[B:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 false) diff --git a/llvm/test/Transforms/InstSimplify/abs_intrinsic.ll b/llvm/test/Transforms/InstSimplify/abs_intrinsic.ll new file mode 100644 index 000000000000..aceaa5ccec0f --- /dev/null +++ b/llvm/test/Transforms/InstSimplify/abs_intrinsic.ll @@ -0,0 +1,184 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -instsimplify -S | FileCheck %s + +declare i32 @llvm.abs.i32(i32, i1) +declare <3 x i82> @llvm.abs.v3i82(<3 x i82>, i1) +declare <4 x i32> @llvm.abs.v4i32(<4 x i32>, i1) + +define i32 @test_abs_abs_0(i32 %x) { +; CHECK-LABEL: @test_abs_abs_0( +; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 false) +; CHECK-NEXT: ret i32 [[A]] +; + %a = call i32 @llvm.abs.i32(i32 %x, i1 false) + %b = call i32 @llvm.abs.i32(i32 %a, i1 false) + ret i32 %b +} + +define i32 @test_abs_abs_1(i32 %x) { +; CHECK-LABEL: @test_abs_abs_1( +; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 true) +; CHECK-NEXT: ret i32 [[A]] +; + %a = call i32 @llvm.abs.i32(i32 %x, i1 true) + %b = call i32 @llvm.abs.i32(i32 %a, i1 false) + ret i32 %b +} + +define i32 @test_abs_abs_2(i32 %x) { +; CHECK-LABEL: @test_abs_abs_2( +; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 false) +; CHECK-NEXT: ret i32 [[A]] +; + %a = call i32 @llvm.abs.i32(i32 %x, i1 false) + %b = call i32 @llvm.abs.i32(i32 %a, i1 true) + ret i32 %b +} + +define i32 @test_abs_abs_3(i32 %x) { +; CHECK-LABEL: @test_abs_abs_3( +; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 true) +; CHECK-NEXT: ret i32 [[A]] +; + %a = call i32 @llvm.abs.i32(i32 %x, i1 true) + %b = call i32 @llvm.abs.i32(i32 %a, i1 true) + ret i32 %b +} + +; If the sign bit is known zero, the abs is not needed. + +define i32 @zext_abs(i31 %x) { +; CHECK-LABEL: @zext_abs( +; CHECK-NEXT: [[ZEXT:%.*]] = zext i31 [[X:%.*]] to i32 +; CHECK-NEXT: ret i32 [[ZEXT]] +; + %zext = zext i31 %x to i32 + %abs = call i32 @llvm.abs.i32(i32 %zext, i1 false) + ret i32 %abs +} + +define <3 x i82> @lshr_abs(<3 x i82> %x) { +; CHECK-LABEL: @lshr_abs( +; CHECK-NEXT: [[LSHR:%.*]] = lshr <3 x i82> [[X:%.*]], +; CHECK-NEXT: ret <3 x i82> [[LSHR]] +; + %lshr = lshr <3 x i82> %x, + %abs = call <3 x i82> @llvm.abs.v3i82(<3 x i82> %lshr, i1 true) + ret <3 x i82> %abs +} + +define i32 @and_abs(i32 %x) { +; CHECK-LABEL: @and_abs( +; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 2147483644 +; CHECK-NEXT: ret i32 [[AND]] +; + %and = and i32 %x, 2147483644 + %abs = call i32 @llvm.abs.i32(i32 %and, i1 true) + ret i32 %abs +} + +define <3 x i82> @select_abs(<3 x i1> %cond) { +; CHECK-LABEL: @select_abs( +; CHECK-NEXT: [[SEL:%.*]] = select <3 x i1> [[COND:%.*]], <3 x i82> zeroinitializer, <3 x i82> +; CHECK-NEXT: ret <3 x i82> [[SEL]] +; + %sel = select <3 x i1> %cond, <3 x i82> zeroinitializer, <3 x i82> + %abs = call <3 x i82> @llvm.abs.v3i82(<3 x i82> %sel, i1 false) + ret <3 x i82> %abs +} + +declare void @llvm.assume(i1) + +define i32 @assume_abs(i32 %x) { +; CHECK-LABEL: @assume_abs( +; CHECK-NEXT: [[ASSUME:%.*]] = icmp sge i32 [[X:%.*]], 0 +; CHECK-NEXT: call void @llvm.assume(i1 [[ASSUME]]) +; CHECK-NEXT: ret i32 [[X]] +; + %assume = icmp sge i32 %x, 0 + call void @llvm.assume(i1 %assume) + %abs = call i32 @llvm.abs.i32(i32 %x, i1 true) + ret i32 %abs +} + +define i1 @abs_nsw_must_be_positive(i32 %x) { +; CHECK-LABEL: @abs_nsw_must_be_positive( +; CHECK-NEXT: ret i1 true +; + %abs = call i32 @llvm.abs.i32(i32 %x, i1 true) + %c2 = icmp sge i32 %abs, 0 + ret i1 %c2 +} + +define <4 x i1> @abs_nsw_must_be_positive_vec(<4 x i32> %x) { +; CHECK-LABEL: @abs_nsw_must_be_positive_vec( +; CHECK-NEXT: ret <4 x i1> +; + %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %x, i1 true) + %c2 = icmp sge <4 x i32> %abs, zeroinitializer + ret <4 x i1> %c2 +} + +; Negative test, no nsw provides no information about the sign bit of the result. +define i1 @abs_nonsw(i32 %x) { +; CHECK-LABEL: @abs_nonsw( +; CHECK-NEXT: [[ABS:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 false) +; CHECK-NEXT: [[C2:%.*]] = icmp sge i32 [[ABS]], 0 +; CHECK-NEXT: ret i1 [[C2]] +; + %abs = call i32 @llvm.abs.i32(i32 %x, i1 false) + %c2 = icmp sge i32 %abs, 0 + ret i1 %c2 +} + +define <4 x i1> @abs_nonsw_vec(<4 x i32> %x) { +; CHECK-LABEL: @abs_nonsw_vec( +; CHECK-NEXT: [[ABS:%.*]] = call <4 x i32> @llvm.abs.v4i32(<4 x i32> [[X:%.*]], i1 false) +; CHECK-NEXT: [[C2:%.*]] = icmp sge <4 x i32> [[ABS]], zeroinitializer +; CHECK-NEXT: ret <4 x i1> [[C2]] +; + %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %x, i1 false) + %c2 = icmp sge <4 x i32> %abs, zeroinitializer + ret <4 x i1> %c2 +} + +define i1 @abs_known_positive_input_compare(i31 %x) { +; CHECK-LABEL: @abs_known_positive_input_compare( +; CHECK-NEXT: ret i1 true +; + %zext = zext i31 %x to i32 + %abs = call i32 @llvm.abs.i32(i32 %zext, i1 false) + %c2 = icmp sge i32 %abs, 0 + ret i1 %c2 +} + +define <4 x i1> @abs_known_positive_input_compare_vec(<4 x i31> %x) { +; CHECK-LABEL: @abs_known_positive_input_compare_vec( +; CHECK-NEXT: ret <4 x i1> +; + %zext = zext <4 x i31> %x to <4 x i32> + %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %zext, i1 false) + %c2 = icmp sge <4 x i32> %abs, zeroinitializer + ret <4 x i1> %c2 +} + +define i1 @abs_known_not_int_min(i32 %x) { +; CHECK-LABEL: @abs_known_not_int_min( +; CHECK-NEXT: ret i1 true +; + %or = or i32 %x, 1 + %abs = call i32 @llvm.abs.i32(i32 %or, i1 false) + %c2 = icmp sge i32 %abs, 0 + ret i1 %c2 +} + +define <4 x i1> @abs_known_not_int_min_vec(<4 x i32> %x) { +; CHECK-LABEL: @abs_known_not_int_min_vec( +; CHECK-NEXT: ret <4 x i1> +; + %or = or <4 x i32> %x, + %abs = call <4 x i32> @llvm.abs.v4i32(<4 x i32> %or, i1 false) + %c2 = icmp sge <4 x i32> %abs, zeroinitializer + ret <4 x i1> %c2 +} + diff --git a/llvm/test/Transforms/InstSimplify/call.ll b/llvm/test/Transforms/InstSimplify/call.ll index 344cefd5b2c3..6579bda52795 100644 --- a/llvm/test/Transforms/InstSimplify/call.ll +++ b/llvm/test/Transforms/InstSimplify/call.ll @@ -2,105 +2,6 @@ ; RUN: opt < %s -instsimplify -S | FileCheck %s ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s -declare i32 @llvm.abs.i32(i32, i1) -declare <3 x i82> @llvm.abs.v3i82(<3 x i82>, i1) - -define i32 @test_abs_abs_0(i32 %x) { -; CHECK-LABEL: @test_abs_abs_0( -; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 false) -; CHECK-NEXT: ret i32 [[A]] -; - %a = call i32 @llvm.abs.i32(i32 %x, i1 false) - %b = call i32 @llvm.abs.i32(i32 %a, i1 false) - ret i32 %b -} - -define i32 @test_abs_abs_1(i32 %x) { -; CHECK-LABEL: @test_abs_abs_1( -; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 true) -; CHECK-NEXT: ret i32 [[A]] -; - %a = call i32 @llvm.abs.i32(i32 %x, i1 true) - %b = call i32 @llvm.abs.i32(i32 %a, i1 false) - ret i32 %b -} - -define i32 @test_abs_abs_2(i32 %x) { -; CHECK-LABEL: @test_abs_abs_2( -; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 false) -; CHECK-NEXT: ret i32 [[A]] -; - %a = call i32 @llvm.abs.i32(i32 %x, i1 false) - %b = call i32 @llvm.abs.i32(i32 %a, i1 true) - ret i32 %b -} - -define i32 @test_abs_abs_3(i32 %x) { -; CHECK-LABEL: @test_abs_abs_3( -; CHECK-NEXT: [[A:%.*]] = call i32 @llvm.abs.i32(i32 [[X:%.*]], i1 true) -; CHECK-NEXT: ret i32 [[A]] -; - %a = call i32 @llvm.abs.i32(i32 %x, i1 true) - %b = call i32 @llvm.abs.i32(i32 %a, i1 true) - ret i32 %b -} - -; If the sign bit is known zero, the abs is not needed. - -define i32 @zext_abs(i31 %x) { -; CHECK-LABEL: @zext_abs( -; CHECK-NEXT: [[ZEXT:%.*]] = zext i31 [[X:%.*]] to i32 -; CHECK-NEXT: ret i32 [[ZEXT]] -; - %zext = zext i31 %x to i32 - %abs = call i32 @llvm.abs.i32(i32 %zext, i1 false) - ret i32 %abs -} - -define <3 x i82> @lshr_abs(<3 x i82> %x) { -; CHECK-LABEL: @lshr_abs( -; CHECK-NEXT: [[LSHR:%.*]] = lshr <3 x i82> [[X:%.*]], -; CHECK-NEXT: ret <3 x i82> [[LSHR]] -; - %lshr = lshr <3 x i82> %x, - %abs = call <3 x i82> @llvm.abs.v3i82(<3 x i82> %lshr, i1 true) - ret <3 x i82> %abs -} - -define i32 @and_abs(i32 %x) { -; CHECK-LABEL: @and_abs( -; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 2147483644 -; CHECK-NEXT: ret i32 [[AND]] -; - %and = and i32 %x, 2147483644 - %abs = call i32 @llvm.abs.i32(i32 %and, i1 true) - ret i32 %abs -} - -define <3 x i82> @select_abs(<3 x i1> %cond) { -; CHECK-LABEL: @select_abs( -; CHECK-NEXT: [[SEL:%.*]] = select <3 x i1> [[COND:%.*]], <3 x i82> zeroinitializer, <3 x i82> -; CHECK-NEXT: ret <3 x i82> [[SEL]] -; - %sel = select <3 x i1> %cond, <3 x i82> zeroinitializer, <3 x i82> - %abs = call <3 x i82> @llvm.abs.v3i82(<3 x i82> %sel, i1 false) - ret <3 x i82> %abs -} - -declare void @llvm.assume(i1) - -define i32 @assume_abs(i32 %x) { -; CHECK-LABEL: @assume_abs( -; CHECK-NEXT: [[ASSUME:%.*]] = icmp sge i32 [[X:%.*]], 0 -; CHECK-NEXT: call void @llvm.assume(i1 [[ASSUME]]) -; CHECK-NEXT: ret i32 [[X]] -; - %assume = icmp sge i32 %x, 0 - call void @llvm.assume(i1 %assume) - %abs = call i32 @llvm.abs.i32(i32 %x, i1 true) - ret i32 %abs -} - declare {i8, i1} @llvm.uadd.with.overflow.i8(i8 %a, i8 %b) declare {i8, i1} @llvm.sadd.with.overflow.i8(i8 %a, i8 %b) declare {i8, i1} @llvm.usub.with.overflow.i8(i8 %a, i8 %b) @@ -1142,7 +1043,7 @@ define i32 @call_undef_musttail() { define float @nobuiltin_fmax() { ; CHECK-LABEL: @nobuiltin_fmax( -; CHECK-NEXT: [[M:%.*]] = call float @fmaxf(float 0.000000e+00, float 1.000000e+00) #4 +; CHECK-NEXT: [[M:%.*]] = call float @fmaxf(float 0.000000e+00, float 1.000000e+00) #3 ; CHECK-NEXT: [[R:%.*]] = call float @llvm.fabs.f32(float [[M]]) ; CHECK-NEXT: ret float [[R]] ;