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111 lines
2.9 KiB
LLVM
111 lines
2.9 KiB
LLVM
; RUN: opt < %s -instsimplify -S | FileCheck %s
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define i32 @identity_bitreverse_i32(i32 %p) {
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; CHECK-LABEL: @identity_bitreverse_i32(
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; CHECK-NEXT: ret i32 %p
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%a = call i32 @llvm.bitreverse.i32(i32 %p)
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%b = call i32 @llvm.bitreverse.i32(i32 %a)
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ret i32 %b
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}
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; CHECK-LABEL: @identity_bitreverse_v2i32(
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; CHECK-NEXT: ret <2 x i32> %p
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define <2 x i32> @identity_bitreverse_v2i32(<2 x i32> %p) {
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%a = call <2 x i32> @llvm.bitreverse.v2i32(<2 x i32> %p)
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%b = call <2 x i32> @llvm.bitreverse.v2i32(<2 x i32> %a)
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ret <2 x i32> %b
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}
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; CHECK-LABEL: @reverse_0_i32(
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; CHECK-NEXT: ret i32 0
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define i32 @reverse_0_i32() {
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%x = call i32 @llvm.bitreverse.i32(i32 0)
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ret i32 %x
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}
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; CHECK-LABEL: @reverse_1_i32(
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; CHECK-NEXT: ret i32 -2147483648
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define i32 @reverse_1_i32() {
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%x = call i32 @llvm.bitreverse.i32(i32 1)
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ret i32 %x
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}
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; CHECK-LABEL: @reverse_neg1_i32(
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; CHECK-NEXT: ret i32 -1
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define i32 @reverse_neg1_i32() {
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%x = call i32 @llvm.bitreverse.i32(i32 -1)
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ret i32 %x
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}
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; CHECK-LABEL: @reverse_undef_i32(
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; CHECK-NEXT: ret i32 undef
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define i32 @reverse_undef_i32() {
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%x = call i32 @llvm.bitreverse.i32(i32 undef)
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ret i32 %x
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}
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; CHECK-LABEL: @reverse_false_i1(
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; CHECK-NEXT: ret i1 false
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define i1 @reverse_false_i1() {
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%x = call i1 @llvm.bitreverse.i1(i1 false)
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ret i1 %x
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}
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; CHECK-LABEL: @reverse_true_i1(
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; CHECK-NEXT: ret i1 true
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define i1 @reverse_true_i1() {
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%x = call i1 @llvm.bitreverse.i1(i1 true)
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ret i1 %x
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}
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; CHECK-LABEL: @reverse_undef_i1(
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; CHECK-NEXT: ret i1 undef
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define i1 @reverse_undef_i1() {
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%x = call i1 @llvm.bitreverse.i1(i1 undef)
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ret i1 %x
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}
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; CHECK-LABEL: @reverse_false_v2i1(
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; CHECK-NEXT: ret <2 x i1> zeroinitializer
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define <2 x i1> @reverse_false_v2i1() {
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%x = call <2 x i1> @llvm.bitreverse.v2i1(<2 x i1> zeroinitializer)
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ret <2 x i1> %x
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}
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; CHECK-LABEL: @reverse_true_v2i1(
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; CHECK-NEXT: ret <2 x i1> <i1 true, i1 true>
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define <2 x i1> @reverse_true_v2i1() {
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%x = call <2 x i1> @llvm.bitreverse.v2i1(<2 x i1> <i1 true, i1 true>)
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ret <2 x i1> %x
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}
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; CHECK-LABEL: @bitreverse_920_1234_v2i32(
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; CHECK-NEXT: ret <2 x i32> <i32 432013312, i32 1260388352>
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define <2 x i32> @bitreverse_920_1234_v2i32() {
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%x = call <2 x i32> @llvm.bitreverse.v2i32(<2 x i32> <i32 920, i32 1234>)
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ret <2 x i32> %x
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}
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; CHECK-LABEL: @reverse_100_i3(
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; CHECK-NEXT: ret i3 1
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define i3 @reverse_100_i3() {
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%x = call i3 @llvm.bitreverse.i3(i3 100)
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ret i3 %x
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}
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; CHECK-LABEL: @reverse_6_3_v2i3(
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; CHECK-NEXT: ret <2 x i3> <i3 3, i3 -2>
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define <2 x i3> @reverse_6_3_v2i3() {
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%x = call <2 x i3> @llvm.bitreverse.v2i3(<2 x i3> <i3 6, i3 3>)
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ret <2 x i3> %x
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}
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declare i1 @llvm.bitreverse.i1(i1) readnone
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declare <2 x i1> @llvm.bitreverse.v2i1(<2 x i1>) readnone
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declare i3 @llvm.bitreverse.i3(i3) readnone
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declare <2 x i3> @llvm.bitreverse.v2i3(<2 x i3>) readnone
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declare i32 @llvm.bitreverse.i32(i32) readnone
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declare <2 x i32> @llvm.bitreverse.v2i32(<2 x i32>) readnone
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