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37 lines
1.5 KiB
LLVM
37 lines
1.5 KiB
LLVM
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; RUN: llc -mtriple=x86_64-apple-darwin -print-machineinstrs=expand-isel-pseudos -enable-selectiondag-sp=true %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=SELDAG
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; RUN: llc -mtriple=x86_64-apple-darwin -print-machineinstrs=expand-isel-pseudos -enable-selectiondag-sp=false %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=IR
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; SELDAG: # Machine code for function test_branch_weights:
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; SELDAG: Successors according to CFG: BB#[[SUCCESS:[0-9]+]](1048575) BB#[[FAILURE:[0-9]+]](1)
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; SELDAG: BB#[[FAILURE]]:
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; SELDAG: CALL64pcrel32 <es:__stack_chk_fail>
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; SELDAG: BB#[[SUCCESS]]:
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; IR: # Machine code for function test_branch_weights:
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; IR: Successors according to CFG: BB#[[SUCCESS:[0-9]+]](1048575) BB#[[FAILURE:[0-9]+]](1)
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; IR: BB#[[SUCCESS]]:
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; IR: BB#[[FAILURE]]:
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; IR: CALL64pcrel32 <ga:@__stack_chk_fail>
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define i32 @test_branch_weights(i32 %n) #0 {
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entry:
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%a = alloca [128 x i32], align 16
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%0 = bitcast [128 x i32]* %a to i8*
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call void @llvm.lifetime.start(i64 512, i8* %0)
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%arraydecay = getelementptr inbounds [128 x i32]* %a, i64 0, i64 0
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call void @foo2(i32* %arraydecay)
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%idxprom = sext i32 %n to i64
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%arrayidx = getelementptr inbounds [128 x i32]* %a, i64 0, i64 %idxprom
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%1 = load i32* %arrayidx, align 4
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call void @llvm.lifetime.end(i64 512, i8* %0)
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ret i32 %1
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}
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declare void @llvm.lifetime.start(i64, i8* nocapture)
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declare void @foo2(i32*)
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declare void @llvm.lifetime.end(i64, i8* nocapture)
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attributes #0 = { ssp "stack-protector-buffer-size"="8" }
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