mirror of
https://github.com/c64scene-ar/llvm-6502.git
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ec9a35a6f9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47793 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
1.6 KiB
LLVM
47 lines
1.6 KiB
LLVM
; Various test cases to ensure basic functionality is working for GCSE
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; RUN: llvm-as < %s | opt -gcse
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define void @testinsts(i32 %i, i32 %j, i32* %p) {
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%A = bitcast i32 %i to i32 ; <i32> [#uses=0]
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%B = bitcast i32 %i to i32 ; <i32> [#uses=0]
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%C = shl i32 %i, 1 ; <i32> [#uses=0]
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%D = shl i32 %i, 1 ; <i32> [#uses=0]
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%E = getelementptr i32* %p, i64 12 ; <i32*> [#uses=0]
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%F = getelementptr i32* %p, i64 12 ; <i32*> [#uses=0]
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%G = getelementptr i32* %p, i64 13 ; <i32*> [#uses=0]
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ret void
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}
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; Test different combinations of domination properties...
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define void @sameBBtest(i32 %i, i32 %j) {
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%A = add i32 %i, %j ; <i32> [#uses=1]
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%B = add i32 %i, %j ; <i32> [#uses=1]
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%C = xor i32 %A, -1 ; <i32> [#uses=0]
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%D = xor i32 %B, -1 ; <i32> [#uses=0]
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%E = xor i32 %j, -1 ; <i32> [#uses=0]
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ret void
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}
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define i32 @dominates(i32 %i, i32 %j) {
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%A = add i32 %i, %j ; <i32> [#uses=0]
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br label %BB2
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BB2: ; preds = %0
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%B = add i32 %i, %j ; <i32> [#uses=1]
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ret i32 %B
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}
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define i32 @hascommondominator(i32 %i, i32 %j) {
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br i1 true, label %BB1, label %BB2
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BB1: ; preds = %0
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%A = add i32 %i, %j ; <i32> [#uses=1]
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ret i32 %A
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BB2: ; preds = %0
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%B = add i32 %i, %j ; <i32> [#uses=1]
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ret i32 %B
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}
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