1; 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=DARWIN-SELDAG
2; 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=DARWIN-IR
3; RUN: llc -mtriple=i386-pc-windows-msvc -print-machineinstrs=expand-isel-pseudos -enable-selectiondag-sp=true %s -o /dev/null 2>&1 | FileCheck %s -check-prefix=MSVC-SELDAG
4; RUN: llc -mtriple=i386-pc-windows-msvc -print-machineinstrs=expand-isel-pseudos -enable-selectiondag-sp=false %s -o /dev/null 2>&1 | FileCheck %s -check-prefix=MSVC-IR
5
6; DARWIN-SELDAG: # Machine code for function test_branch_weights:
7; DARWIN-SELDAG: Successors according to CFG: %bb.[[SUCCESS:[0-9]+]]({{[0-9a-fx/= ]+}}100.00%) %bb.[[FAILURE:[0-9]+]]
8; DARWIN-SELDAG: %bb.[[FAILURE]]:
9; DARWIN-SELDAG: CALL64pcrel32 &__stack_chk_fail
10; DARWIN-SELDAG: %bb.[[SUCCESS]]:
11
12; DARWIN-IR: # Machine code for function test_branch_weights:
13; DARWIN-IR: Successors according to CFG: %bb.[[SUCCESS:[0-9]+]]({{[0-9a-fx/= ]+}}100.00%) %bb.[[FAILURE:[0-9]+]]
14; DARWIN-IR: %bb.[[SUCCESS]]:
15; DARWIN-IR: %bb.[[FAILURE]]:
16; DARWIN-IR: CALL64pcrel32 @__stack_chk_fail
17
18; MSVC-SELDAG: # Machine code for function test_branch_weights:
19; MSVC-SELDAG: mem:Volatile LD4[@__security_cookie]
20; MSVC-SELDAG: ST4[FixedStack0]
21; MSVC-SELDAG: LD4[FixedStack0]
22; MSVC-SELDAG: CALLpcrel32 @__security_check_cookie
23
24; MSVC always uses selection DAG now.
25; MSVC-IR: # Machine code for function test_branch_weights:
26; MSVC-IR: mem:Volatile LD4[@__security_cookie]
27; MSVC-IR: ST4[FixedStack0]
28; MSVC-IR: LD4[FixedStack0]
29; MSVC-IR: CALLpcrel32 @__security_check_cookie
30
31define i32 @test_branch_weights(i32 %n) #0 {
32entry:
33  %a = alloca [128 x i32], align 16
34  %0 = bitcast [128 x i32]* %a to i8*
35  call void @llvm.lifetime.start.p0i8(i64 512, i8* %0)
36  %arraydecay = getelementptr inbounds [128 x i32], [128 x i32]* %a, i64 0, i64 0
37  call void @foo2(i32* %arraydecay)
38  %idxprom = sext i32 %n to i64
39  %arrayidx = getelementptr inbounds [128 x i32], [128 x i32]* %a, i64 0, i64 %idxprom
40  %1 = load i32, i32* %arrayidx, align 4
41  call void @llvm.lifetime.end.p0i8(i64 512, i8* %0)
42  ret i32 %1
43}
44
45declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
46
47declare void @foo2(i32*)
48
49declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
50
51attributes #0 = { sspstrong "stack-protector-buffer-size"="8" }
52