f4f7df037e
This pass is like DeadCodeEliminationPass, but only does one pass through a function instead of iterating on users of eliminated instructions. DeadCodeEliminationPass should be used in all cases. Reviewed By: asbirlea Differential Revision: https://reviews.llvm.org/D87933
36 lines
790 B
LLVM
36 lines
790 B
LLVM
; Ensure constant propagation of logical instructions is working correctly.
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; RUN: opt < %s -instsimplify -dce -S | FileCheck %s
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; CHECK-NOT: {{and|or|xor}}
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define i32 @test1() {
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%R = and i32 4, 1234 ; <i32> [#uses=1]
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ret i32 %R
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}
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define i1 @test1.upgrd.1() {
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%R = and i1 true, false ; <i1> [#uses=1]
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ret i1 %R
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}
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define i32 @test2() {
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%R = or i32 4, 1234 ; <i32> [#uses=1]
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ret i32 %R
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}
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define i1 @test2.upgrd.2() {
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%R = or i1 true, false ; <i1> [#uses=1]
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ret i1 %R
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}
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define i32 @test3() {
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%R = xor i32 4, 1234 ; <i32> [#uses=1]
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ret i32 %R
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}
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define i1 @test3.upgrd.3() {
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%R = xor i1 true, false ; <i1> [#uses=1]
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ret i1 %R
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}
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