llvm-6502/test/CodeGen/ARM/2011-12-14-machine-sink.ll
Matthias Braun 29aeaf5408 Improve test robustness
Improve test robustness in preparation of coming commits:
- Avoid undefs which may get propagated too much.
- Remove several pointless add 0, instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231307 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-04 22:31:18 +00:00

40 lines
1.4 KiB
LLVM

; REQUIRES: asserts
; RUN: llc < %s -o /dev/null -stats 2>&1 | FileCheck %s -check-prefix=STATS
; Radar 10266272
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
target triple = "thumbv7-apple-ios4.0.0"
; STATS-NOT: machine-sink
define i32 @foo(i32 %h, i32 %arg1) nounwind readonly ssp {
entry:
br label %for.cond
for.cond: ; preds = %for.body, %entry
%cmp = icmp slt i32 0, %h
br i1 %cmp, label %for.body, label %if.end299
for.body: ; preds = %for.cond
%cond0 = icmp ne i32 %arg1, 42
%v.5 = select i1 %cond0, i32 undef, i32 0
%0 = load i8, i8* undef, align 1
%conv88 = zext i8 %0 to i32
%sub89 = sub nsw i32 0, %conv88
%cond1 = icmp ne i32 %arg1, 23
%v.8 = select i1 %cond1, i32 undef, i32 %sub89
%1 = load i8, i8* null, align 1
%conv108 = zext i8 %1 to i32
%2 = load i8, i8* undef, align 1
%conv110 = zext i8 %2 to i32
%sub111 = sub nsw i32 %conv108, %conv110
%cmp112 = icmp slt i32 %sub111, 0
%sub115 = sub nsw i32 0, %sub111
%abs = select i1 %cmp112, i32 %sub115, i32 %sub111
%add95 = add i32 %v.5, %v.8
%add117 = add i32 %add95, %abs
br i1 undef, label %for.cond, label %if.end299
if.end299: ; preds = %for.body, %for.cond
%s.10 = phi i32 [ %add117, %for.body ], [ 0, %for.cond ]
ret i32 %s.10
}