forked from OSchip/llvm-project
[InstCombine] [NFC] Added tests for Select with binop fold
llvm-svn: 338257
This commit is contained in:
David Bolvansky
parent
24ec072e18
commit
403826ee0f
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@ -1,6 +1,8 @@
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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declare void @use(<2 x i1>)
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define i32 @select_xor_icmp(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @select_xor_icmp(
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; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
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@ -14,6 +16,32 @@ define i32 @select_xor_icmp(i32 %x, i32 %y, i32 %z) {
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ret i32 %C
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}
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define i32 @select_xor_icmp2(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @select_xor_icmp2(
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; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
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; CHECK-NEXT: [[B:%.*]] = xor i32 [[X]], [[Z:%.*]]
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; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[C]]
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;
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%A = icmp ne i32 %x, 0
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%B = xor i32 %x, %z
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%C = select i1 %A, i32 %y, i32 %B
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ret i32 %C
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}
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define i32 @select_xor_icmp_meta(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @select_xor_icmp_meta(
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; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
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; CHECK-NEXT: [[B:%.*]] = xor i32 [[X]], [[Z:%.*]]
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; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]], !prof !0
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; CHECK-NEXT: ret i32 [[C]]
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;
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%A = icmp eq i32 %x, 0
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%B = xor i32 %x, %z
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%C = select i1 %A, i32 %B, i32 %y, !prof !0
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ret i32 %C
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}
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define i32 @select_mul_icmp(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @select_mul_icmp(
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; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 1
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@ -79,16 +107,18 @@ define <2 x i8> @select_xor_icmp_vec(<2 x i8> %x, <2 x i8> %y, <2 x i8> %z) {
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ret <2 x i8> %C
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}
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define <2 x i8> @select_xor_icmp_vec2(<2 x i8> %x, <2 x i8> %y, <2 x i8> %z) {
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; CHECK-LABEL: @select_xor_icmp_vec2(
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; CHECK-NEXT: [[A:%.*]] = icmp eq <2 x i8> [[X:%.*]], <i8 0, i8 undef>
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define <2 x i8> @select_xor_icmp_vec_use(<2 x i8> %x, <2 x i8> %y, <2 x i8> %z) {
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; CHECK-LABEL: @select_xor_icmp_vec_use(
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; CHECK-NEXT: [[A:%.*]] = icmp ne <2 x i8> [[X:%.*]], zeroinitializer
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; CHECK-NEXT: call void @use(<2 x i1> [[A]])
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; CHECK-NEXT: [[B:%.*]] = xor <2 x i8> [[X]], [[Z:%.*]]
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; CHECK-NEXT: [[C:%.*]] = select <2 x i1> [[A]], <2 x i8> [[B]], <2 x i8> [[Y:%.*]]
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; CHECK-NEXT: [[C:%.*]] = select <2 x i1> [[A]], <2 x i8> [[Y:%.*]], <2 x i8> [[B]]
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; CHECK-NEXT: ret <2 x i8> [[C]]
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;
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%A = icmp eq <2 x i8> %x, <i8 0, i8 undef>
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%A = icmp ne <2 x i8> %x, <i8 0, i8 0>
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call void @use(<2 x i1> %A)
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%B = xor <2 x i8> %x, %z
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%C = select <2 x i1> %A, <2 x i8> %B, <2 x i8> %y
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%C = select <2 x i1> %A, <2 x i8> %y, <2 x i8> %B
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ret <2 x i8> %C
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}
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@ -105,6 +135,19 @@ define i32 @select_xor_inv_icmp(i32 %x, i32 %y, i32 %z) {
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ret i32 %C
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}
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define i32 @select_xor_inv_icmp2(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @select_xor_inv_icmp2(
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; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 0
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; CHECK-NEXT: [[B:%.*]] = xor i32 [[X]], [[Z:%.*]]
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; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[C]]
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;
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%A = icmp ne i32 %x, 0
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%B = xor i32 %x, %z
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%C = select i1 %A, i32 %y, i32 %B
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ret i32 %C
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}
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; Negative tests
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define i32 @select_xor_icmp_bad_1(i32 %x, i32 %y, i32 %z, i32 %k) {
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; CHECK-LABEL: @select_xor_icmp_bad_1(
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@ -171,6 +214,19 @@ define i32 @select_xor_icmp_bad_5(i32 %x, i32 %y, i32 %z) {
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ret i32 %C
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}
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define i32 @select_xor_icmp_bad_6(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @select_xor_icmp_bad_6(
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; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 1
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; CHECK-NEXT: [[B:%.*]] = xor i32 [[X]], [[Z:%.*]]
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; CHECK-NEXT: [[C:%.*]] = select i1 [[A]], i32 [[B]], i32 [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[C]]
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;
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%A = icmp ne i32 %x, 1
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%B = xor i32 %x, %z
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%C = select i1 %A, i32 %y, i32 %B
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ret i32 %C
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}
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define <2 x i8> @select_xor_icmp_vec_bad(<2 x i8> %x, <2 x i8> %y, <2 x i8> %z) {
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; CHECK-LABEL: @select_xor_icmp_vec_bad(
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; CHECK-NEXT: [[A:%.*]] = icmp eq <2 x i8> [[X:%.*]], <i8 5, i8 3>
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@ -184,6 +240,19 @@ define <2 x i8> @select_xor_icmp_vec_bad(<2 x i8> %x, <2 x i8> %y, <2 x i8> %z)
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ret <2 x i8> %C
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}
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define <2 x i8> @select_xor_icmp_vec_bad_2(<2 x i8> %x, <2 x i8> %y, <2 x i8> %z) {
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; CHECK-LABEL: @select_xor_icmp_vec_bad_2(
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; CHECK-NEXT: [[A:%.*]] = icmp eq <2 x i8> [[X:%.*]], <i8 0, i8 undef>
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; CHECK-NEXT: [[B:%.*]] = xor <2 x i8> [[X]], [[Z:%.*]]
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; CHECK-NEXT: [[C:%.*]] = select <2 x i1> [[A]], <2 x i8> [[B]], <2 x i8> [[Y:%.*]]
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; CHECK-NEXT: ret <2 x i8> [[C]]
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;
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%A = icmp eq <2 x i8> %x, <i8 0, i8 undef>
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%B = xor <2 x i8> %x, %z
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%C = select <2 x i1> %A, <2 x i8> %B, <2 x i8> %y
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ret <2 x i8> %C
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}
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define i32 @select_mul_icmp_bad(i32 %x, i32 %y, i32 %z, i32 %k) {
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; CHECK-LABEL: @select_mul_icmp_bad(
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; CHECK-NEXT: [[A:%.*]] = icmp eq i32 [[X:%.*]], 3
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@ -328,3 +397,5 @@ define float @select_fmul_icmp(float %x, float %y, float %z) {
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%C = select i1 %A, float %B, float %y
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ret float %C
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}
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!0 = !{!"branch_weights", i32 2, i32 10}
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