forked from OSchip/llvm-project
453 lines
14 KiB
LLVM
453 lines
14 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instsimplify -S | FileCheck %s
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; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
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declare {i8, i1} @llvm.uadd.with.overflow.i8(i8 %a, i8 %b)
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declare {i8, i1} @llvm.sadd.with.overflow.i8(i8 %a, i8 %b)
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declare {i8, i1} @llvm.usub.with.overflow.i8(i8 %a, i8 %b)
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declare {i8, i1} @llvm.ssub.with.overflow.i8(i8 %a, i8 %b)
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declare {i8, i1} @llvm.umul.with.overflow.i8(i8 %a, i8 %b)
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declare {i8, i1} @llvm.smul.with.overflow.i8(i8 %a, i8 %b)
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define i1 @test_uadd1() {
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; CHECK-LABEL: @test_uadd1(
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; CHECK-NEXT: ret i1 true
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;
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%x = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 254, i8 3)
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%overflow = extractvalue {i8, i1} %x, 1
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ret i1 %overflow
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}
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define i8 @test_uadd2() {
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; CHECK-LABEL: @test_uadd2(
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; CHECK-NEXT: ret i8 42
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;
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%x = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 254, i8 44)
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%result = extractvalue {i8, i1} %x, 0
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ret i8 %result
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}
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define {i8, i1} @test_uadd3(i8 %v) {
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; CHECK-LABEL: @test_uadd3(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%result = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 %v, i8 undef)
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ret {i8, i1} %result
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}
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define {i8, i1} @test_uadd4(i8 %v) {
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; CHECK-LABEL: @test_uadd4(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%result = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 undef, i8 %v)
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ret {i8, i1} %result
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}
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define i1 @test_sadd1() {
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; CHECK-LABEL: @test_sadd1(
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; CHECK-NEXT: ret i1 true
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;
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%x = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 126, i8 3)
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%overflow = extractvalue {i8, i1} %x, 1
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ret i1 %overflow
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}
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define i8 @test_sadd2() {
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; CHECK-LABEL: @test_sadd2(
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; CHECK-NEXT: ret i8 -86
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;
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%x = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 126, i8 44)
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%result = extractvalue {i8, i1} %x, 0
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ret i8 %result
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}
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define {i8, i1} @test_sadd3(i8 %v) {
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; CHECK-LABEL: @test_sadd3(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%result = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 %v, i8 undef)
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ret {i8, i1} %result
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}
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define {i8, i1} @test_sadd4(i8 %v) {
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; CHECK-LABEL: @test_sadd4(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%result = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 undef, i8 %v)
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ret {i8, i1} %result
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}
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define {i8, i1} @test_usub1(i8 %V) {
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; CHECK-LABEL: @test_usub1(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.usub.with.overflow.i8(i8 %V, i8 %V)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_usub2(i8 %V) {
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; CHECK-LABEL: @test_usub2(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%x = call {i8, i1} @llvm.usub.with.overflow.i8(i8 %V, i8 undef)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_usub3(i8 %V) {
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; CHECK-LABEL: @test_usub3(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%x = call {i8, i1} @llvm.usub.with.overflow.i8(i8 undef, i8 %V)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_ssub1(i8 %V) {
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; CHECK-LABEL: @test_ssub1(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 %V, i8 %V)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_ssub2(i8 %V) {
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; CHECK-LABEL: @test_ssub2(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%x = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 %V, i8 undef)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_ssub3(i8 %V) {
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; CHECK-LABEL: @test_ssub3(
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; CHECK-NEXT: ret { i8, i1 } undef
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;
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%x = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 undef, i8 %V)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_umul1(i8 %V) {
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; CHECK-LABEL: @test_umul1(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.umul.with.overflow.i8(i8 %V, i8 0)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_umul2(i8 %V) {
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; CHECK-LABEL: @test_umul2(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.umul.with.overflow.i8(i8 %V, i8 undef)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_umul3(i8 %V) {
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; CHECK-LABEL: @test_umul3(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.umul.with.overflow.i8(i8 0, i8 %V)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_umul4(i8 %V) {
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; CHECK-LABEL: @test_umul4(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.umul.with.overflow.i8(i8 undef, i8 %V)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_smul1(i8 %V) {
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; CHECK-LABEL: @test_smul1(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.smul.with.overflow.i8(i8 %V, i8 0)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_smul2(i8 %V) {
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; CHECK-LABEL: @test_smul2(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.smul.with.overflow.i8(i8 %V, i8 undef)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_smul3(i8 %V) {
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; CHECK-LABEL: @test_smul3(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.smul.with.overflow.i8(i8 0, i8 %V)
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ret {i8, i1} %x
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}
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define {i8, i1} @test_smul4(i8 %V) {
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; CHECK-LABEL: @test_smul4(
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; CHECK-NEXT: ret { i8, i1 } zeroinitializer
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;
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%x = call {i8, i1} @llvm.smul.with.overflow.i8(i8 undef, i8 %V)
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ret {i8, i1} %x
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}
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declare i256 @llvm.cttz.i256(i256 %src, i1 %is_zero_undef)
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define i256 @test_cttz() {
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; CHECK-LABEL: @test_cttz(
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; CHECK-NEXT: ret i256 1
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;
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%x = call i256 @llvm.cttz.i256(i256 10, i1 false)
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ret i256 %x
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}
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declare <2 x i256> @llvm.cttz.v2i256(<2 x i256> %src, i1 %is_zero_undef)
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define <2 x i256> @test_cttz_vec() {
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; CHECK-LABEL: @test_cttz_vec(
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; CHECK-NEXT: ret <2 x i256> <i256 1, i256 1>
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;
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%x = call <2 x i256> @llvm.cttz.v2i256(<2 x i256> <i256 10, i256 10>, i1 false)
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ret <2 x i256> %x
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}
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declare i256 @llvm.ctpop.i256(i256 %src)
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define i256 @test_ctpop() {
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; CHECK-LABEL: @test_ctpop(
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; CHECK-NEXT: ret i256 2
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;
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%x = call i256 @llvm.ctpop.i256(i256 10)
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ret i256 %x
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}
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; Test a non-intrinsic that we know about as a library call.
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declare float @fabs(float %x)
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define float @test_fabs_libcall() {
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; CHECK-LABEL: @test_fabs_libcall(
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; CHECK-NEXT: [[X:%.*]] = call float @fabs(float -4.200000e+01)
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; CHECK-NEXT: ret float 4.200000e+01
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;
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%x = call float @fabs(float -42.0)
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; This is still a real function call, so instsimplify won't nuke it -- other
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; passes have to do that.
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ret float %x
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}
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declare float @llvm.fabs.f32(float) nounwind readnone
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declare float @llvm.floor.f32(float) nounwind readnone
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declare float @llvm.ceil.f32(float) nounwind readnone
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declare float @llvm.trunc.f32(float) nounwind readnone
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declare float @llvm.rint.f32(float) nounwind readnone
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declare float @llvm.nearbyint.f32(float) nounwind readnone
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declare float @llvm.canonicalize.f32(float) nounwind readnone
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; Test idempotent intrinsics
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define float @test_idempotence(float %a) {
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; CHECK-LABEL: @test_idempotence(
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; CHECK-NEXT: [[A0:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]])
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; CHECK-NEXT: [[B0:%.*]] = call float @llvm.floor.f32(float [[A]])
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; CHECK-NEXT: [[C0:%.*]] = call float @llvm.ceil.f32(float [[A]])
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; CHECK-NEXT: [[D0:%.*]] = call float @llvm.trunc.f32(float [[A]])
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; CHECK-NEXT: [[E0:%.*]] = call float @llvm.rint.f32(float [[A]])
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; CHECK-NEXT: [[F0:%.*]] = call float @llvm.nearbyint.f32(float [[A]])
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; CHECK-NEXT: [[G0:%.*]] = call float @llvm.canonicalize.f32(float [[A]])
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; CHECK-NEXT: [[R0:%.*]] = fadd float [[A0]], [[B0]]
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; CHECK-NEXT: [[R1:%.*]] = fadd float [[R0]], [[C0]]
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; CHECK-NEXT: [[R2:%.*]] = fadd float [[R1]], [[D0]]
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; CHECK-NEXT: [[R3:%.*]] = fadd float [[R2]], [[E0]]
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; CHECK-NEXT: [[R4:%.*]] = fadd float [[R3]], [[F0]]
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; CHECK-NEXT: [[R5:%.*]] = fadd float [[R4]], [[G0]]
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; CHECK-NEXT: ret float [[R5]]
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;
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%a0 = call float @llvm.fabs.f32(float %a)
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%a1 = call float @llvm.fabs.f32(float %a0)
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%b0 = call float @llvm.floor.f32(float %a)
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%b1 = call float @llvm.floor.f32(float %b0)
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%c0 = call float @llvm.ceil.f32(float %a)
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%c1 = call float @llvm.ceil.f32(float %c0)
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%d0 = call float @llvm.trunc.f32(float %a)
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%d1 = call float @llvm.trunc.f32(float %d0)
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%e0 = call float @llvm.rint.f32(float %a)
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%e1 = call float @llvm.rint.f32(float %e0)
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%f0 = call float @llvm.nearbyint.f32(float %a)
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%f1 = call float @llvm.nearbyint.f32(float %f0)
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%g0 = call float @llvm.canonicalize.f32(float %a)
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%g1 = call float @llvm.canonicalize.f32(float %g0)
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%r0 = fadd float %a1, %b1
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%r1 = fadd float %r0, %c1
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%r2 = fadd float %r1, %d1
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%r3 = fadd float %r2, %e1
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%r4 = fadd float %r3, %f1
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%r5 = fadd float %r4, %g1
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ret float %r5
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}
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define i8* @operator_new() {
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; CHECK-LABEL: @operator_new(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = tail call noalias i8* @_Znwm(i64 8)
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; CHECK-NEXT: br i1 false, label [[CAST_END:%.*]], label [[CAST_NOTNULL:%.*]]
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; CHECK: cast.notnull:
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; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[CALL]], i64 4
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; CHECK-NEXT: br label [[CAST_END]]
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; CHECK: cast.end:
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; CHECK-NEXT: [[CAST_RESULT:%.*]] = phi i8* [ [[ADD_PTR]], [[CAST_NOTNULL]] ], [ null, [[ENTRY:%.*]] ]
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; CHECK-NEXT: ret i8* [[CAST_RESULT]]
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;
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entry:
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%call = tail call noalias i8* @_Znwm(i64 8)
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%cmp = icmp eq i8* %call, null
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br i1 %cmp, label %cast.end, label %cast.notnull
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cast.notnull: ; preds = %entry
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%add.ptr = getelementptr inbounds i8, i8* %call, i64 4
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br label %cast.end
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cast.end: ; preds = %cast.notnull, %entry
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%cast.result = phi i8* [ %add.ptr, %cast.notnull ], [ null, %entry ]
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ret i8* %cast.result
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}
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declare nonnull noalias i8* @_Znwm(i64)
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%"struct.std::nothrow_t" = type { i8 }
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@_ZSt7nothrow = external global %"struct.std::nothrow_t"
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define i8* @operator_new_nothrow_t() {
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; CHECK-LABEL: @operator_new_nothrow_t(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = tail call noalias i8* @_ZnamRKSt9nothrow_t(i64 8, %"struct.std::nothrow_t"* @_ZSt7nothrow)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8* [[CALL]], null
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; CHECK-NEXT: br i1 [[CMP]], label [[CAST_END:%.*]], label [[CAST_NOTNULL:%.*]]
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; CHECK: cast.notnull:
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; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[CALL]], i64 4
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; CHECK-NEXT: br label [[CAST_END]]
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; CHECK: cast.end:
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; CHECK-NEXT: [[CAST_RESULT:%.*]] = phi i8* [ [[ADD_PTR]], [[CAST_NOTNULL]] ], [ null, [[ENTRY:%.*]] ]
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; CHECK-NEXT: ret i8* [[CAST_RESULT]]
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;
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entry:
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%call = tail call noalias i8* @_ZnamRKSt9nothrow_t(i64 8, %"struct.std::nothrow_t"* @_ZSt7nothrow)
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%cmp = icmp eq i8* %call, null
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br i1 %cmp, label %cast.end, label %cast.notnull
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cast.notnull: ; preds = %entry
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%add.ptr = getelementptr inbounds i8, i8* %call, i64 4
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br label %cast.end
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cast.end: ; preds = %cast.notnull, %entry
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%cast.result = phi i8* [ %add.ptr, %cast.notnull ], [ null, %entry ]
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ret i8* %cast.result
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}
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declare i8* @_ZnamRKSt9nothrow_t(i64, %"struct.std::nothrow_t"*) nounwind
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define i8* @malloc_can_return_null() {
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; CHECK-LABEL: @malloc_can_return_null(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = tail call noalias i8* @malloc(i64 8)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8* [[CALL]], null
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; CHECK-NEXT: br i1 [[CMP]], label [[CAST_END:%.*]], label [[CAST_NOTNULL:%.*]]
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; CHECK: cast.notnull:
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; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[CALL]], i64 4
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; CHECK-NEXT: br label [[CAST_END]]
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; CHECK: cast.end:
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; CHECK-NEXT: [[CAST_RESULT:%.*]] = phi i8* [ [[ADD_PTR]], [[CAST_NOTNULL]] ], [ null, [[ENTRY:%.*]] ]
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; CHECK-NEXT: ret i8* [[CAST_RESULT]]
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;
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entry:
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%call = tail call noalias i8* @malloc(i64 8)
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%cmp = icmp eq i8* %call, null
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br i1 %cmp, label %cast.end, label %cast.notnull
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cast.notnull: ; preds = %entry
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%add.ptr = getelementptr inbounds i8, i8* %call, i64 4
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br label %cast.end
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cast.end: ; preds = %cast.notnull, %entry
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%cast.result = phi i8* [ %add.ptr, %cast.notnull ], [ null, %entry ]
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ret i8* %cast.result
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}
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define i32 @call_null() {
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; CHECK-LABEL: @call_null(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = call i32 null()
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; CHECK-NEXT: ret i32 undef
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;
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entry:
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%call = call i32 null()
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ret i32 %call
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}
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define i32 @call_undef() {
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; CHECK-LABEL: @call_undef(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = call i32 undef()
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; CHECK-NEXT: ret i32 undef
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;
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entry:
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%call = call i32 undef()
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ret i32 %call
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}
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@GV = private constant [8 x i32] [i32 42, i32 43, i32 44, i32 45, i32 46, i32 47, i32 48, i32 49]
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define <8 x i32> @partial_masked_load() {
|
|
; CHECK-LABEL: @partial_masked_load(
|
|
; CHECK-NEXT: ret <8 x i32> <i32 undef, i32 undef, i32 42, i32 43, i32 44, i32 45, i32 46, i32 47>
|
|
;
|
|
%masked.load = call <8 x i32> @llvm.masked.load.v8i32.p0v8i32(<8 x i32>* bitcast (i32* getelementptr ([8 x i32], [8 x i32]* @GV, i64 0, i64 -2) to <8 x i32>*), i32 4, <8 x i1> <i1 false, i1 false, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>, <8 x i32> undef)
|
|
ret <8 x i32> %masked.load
|
|
}
|
|
|
|
define <8 x i32> @masked_load_undef_mask(<8 x i32>* %V) {
|
|
; CHECK-LABEL: @masked_load_undef_mask(
|
|
; CHECK-NEXT: ret <8 x i32> <i32 1, i32 0, i32 1, i32 0, i32 1, i32 0, i32 1, i32 0>
|
|
;
|
|
%masked.load = call <8 x i32> @llvm.masked.load.v8i32.p0v8i32(<8 x i32>* %V, i32 4, <8 x i1> undef, <8 x i32> <i32 1, i32 0, i32 1, i32 0, i32 1, i32 0, i32 1, i32 0>)
|
|
ret <8 x i32> %masked.load
|
|
}
|
|
|
|
declare noalias i8* @malloc(i64)
|
|
|
|
declare <8 x i32> @llvm.masked.load.v8i32.p0v8i32(<8 x i32>*, i32, <8 x i1>, <8 x i32>)
|
|
|
|
declare double @llvm.powi.f64(double, i32)
|
|
declare <2 x double> @llvm.powi.v2f64(<2 x double>, i32)
|
|
|
|
define double @constant_fold_powi() nounwind uwtable ssp {
|
|
; CHECK-LABEL: @constant_fold_powi(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: ret double 9.000000e+00
|
|
;
|
|
entry:
|
|
%0 = call double @llvm.powi.f64(double 3.00000e+00, i32 2)
|
|
ret double %0
|
|
}
|
|
|
|
define <2 x double> @constant_fold_powi_vec() nounwind uwtable ssp {
|
|
; CHECK-LABEL: @constant_fold_powi_vec(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: ret <2 x double> <double 9.000000e+00, double 2.500000e+01>
|
|
;
|
|
entry:
|
|
%0 = call <2 x double> @llvm.powi.v2f64(<2 x double> <double 3.00000e+00, double 5.00000e+00>, i32 2)
|
|
ret <2 x double> %0
|
|
}
|