1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
; 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
; 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
; SELDAG: # Machine code for function test_branch_weights:
; SELDAG: Successors according to CFG: BB#[[SUCCESS:[0-9]+]]({{[0-9a-fx/= ]+}}100.00%) BB#[[FAILURE:[0-9]+]]
; SELDAG: BB#[[FAILURE]]:
; SELDAG: CALL64pcrel32 <es:__stack_chk_fail>
; SELDAG: BB#[[SUCCESS]]:
; IR: # Machine code for function test_branch_weights:
; IR: Successors according to CFG: BB#[[SUCCESS:[0-9]+]]({{[0-9a-fx/= ]+}}100.00%) BB#[[FAILURE:[0-9]+]]
; IR: BB#[[SUCCESS]]:
; IR: BB#[[FAILURE]]:
; IR: CALL64pcrel32 <ga:@__stack_chk_fail>
define i32 @test_branch_weights(i32 %n) #0 {
entry:
%a = alloca [128 x i32], align 16
%0 = bitcast [128 x i32]* %a to i8*
call void @llvm.lifetime.start(i64 512, i8* %0)
%arraydecay = getelementptr inbounds [128 x i32], [128 x i32]* %a, i64 0, i64 0
call void @foo2(i32* %arraydecay)
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds [128 x i32], [128 x i32]* %a, i64 0, i64 %idxprom
%1 = load i32, i32* %arrayidx, align 4
call void @llvm.lifetime.end(i64 512, i8* %0)
ret i32 %1
}
declare void @llvm.lifetime.start(i64, i8* nocapture)
declare void @foo2(i32*)
declare void @llvm.lifetime.end(i64, i8* nocapture)
attributes #0 = { ssp "stack-protector-buffer-size"="8" }
|
