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Improve test robustness

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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
This commit is contained in:
Matthias Braun 2015-03-04 22:31:18 +00:00
parent 295be8492e
commit 29aeaf5408
1 changed files with 9 additions and 16 deletions
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25
test/CodeGen/ARM/2011-12-14-machine-sink.ll
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@ -5,7 +5,7 @@ target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-
target triple = "thumbv7-apple-ios4.0.0"
; STATS-NOT: machine-sink
define i32 @foo(i32 %h) nounwind readonly ssp {
define i32 @foo(i32 %h, i32 %arg1) nounwind readonly ssp {
entry:
br label %for.cond
@ -14,11 +14,13 @@ for.cond: ; preds = %for.body, %entry
br i1 %cmp, label %for.body, label %if.end299
for.body: ; preds = %for.cond
%v.5 = select i1 undef, i32 undef, i32 0
%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
%v.8 = select i1 undef, i32 undef, i32 %sub89
%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
@ -26,21 +28,12 @@ for.body: ; preds = %for.cond
%sub111 = sub nsw i32 %conv108, %conv110
%cmp112 = icmp slt i32 %sub111, 0
%sub115 = sub nsw i32 0, %sub111
%v.10 = select i1 %cmp112, i32 %sub115, i32 %sub111
%add62 = add i32 0, %v.5
%add73 = add i32 %add62, 0
%add84 = add i32 %add73, 0
%add95 = add i32 %add84, %v.8
%add106 = add i32 %add95, 0
%add117 = add i32 %add106, %v.10
%add128 = add i32 %add117, 0
%add139 = add i32 %add128, 0
%add150 = add i32 %add139, 0
%add161 = add i32 %add150, 0
%add172 = add i32 %add161, 0
%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 [ %add172, %for.body ], [ 0, %for.cond ]
%s.10 = phi i32 [ %add117, %for.body ], [ 0, %for.cond ]
ret i32 %s.10
}