e5b8772756
This is effectively reverting rGbfdc2552664d to avoid test churn while we figure out a better way forward. We at least salvage the warning on name conflict from that patch though. If we change the default string again, we may want to mass update tests at the same time. Alternatively, we could live with the poor naming if we change -instnamer. This also adds a test to LLVM as suggested in the post-commit review. There's a clang test that is also affected. That seems like a layering violation, but I have not looked at fixing that yet. Differential Revision: https://reviews.llvm.org/D80584
60 lines
1.4 KiB
Plaintext
60 lines
1.4 KiB
Plaintext
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; Example input for update_test_checks (taken from test/Transforms/InstSimplify/add.ll)
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; RUN: opt < %s -instsimplify -S | FileCheck %s
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define i32 @common_sub_operand(i32 %X, i32 %Y) {
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; CHECK-LABEL: @common_sub_operand(
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; CHECK-NEXT: ret i32 [[X:%.*]]
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;
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%Z = sub i32 %X, %Y
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%Q = add i32 %Z, %Y
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ret i32 %Q
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}
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define i32 @negated_operand(i32 %x) {
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; CHECK-LABEL: @negated_operand(
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; CHECK-NEXT: ret i32 0
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;
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%negx = sub i32 0, %x
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%r = add i32 %negx, %x
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ret i32 %r
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}
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define <2 x i32> @negated_operand_commute_vec(<2 x i32> %x) {
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; CHECK-LABEL: @negated_operand_commute_vec(
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; CHECK-NEXT: ret <2 x i32> zeroinitializer
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;
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%negx = sub <2 x i32> zeroinitializer, %x
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%r = add <2 x i32> %x, %negx
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ret <2 x i32> %r
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}
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define i8 @knownnegation(i8 %x, i8 %y) {
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; CHECK-LABEL: @knownnegation(
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; CHECK-NEXT: ret i8 0
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;
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%xy = sub i8 %x, %y
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%yx = sub i8 %y, %x
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%r = add i8 %xy, %yx
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ret i8 %r
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}
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define <2 x i8> @knownnegation_commute_vec(<2 x i8> %x, <2 x i8> %y) {
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; CHECK-LABEL: @knownnegation_commute_vec(
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; CHECK-NEXT: ret <2 x i8> zeroinitializer
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;
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%xy = sub <2 x i8> %x, %y
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%yx = sub <2 x i8> %y, %x
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%r = add <2 x i8> %yx, %xy
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ret <2 x i8> %r
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}
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define i32 @nameless_value(i32 %X) {
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; CHECK-LABEL: @nameless_value(
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; CHECK-NEXT: [[TMP1:%.*]] = sub i32 42, [[X:%.*]]
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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%1 = sub i32 42, %X
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ret i32 %1
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}
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