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https://github.com/c64scene-ar/llvm-6502.git
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29aeaf5408
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
40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
; REQUIRES: asserts
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; RUN: llc < %s -o /dev/null -stats 2>&1 | FileCheck %s -check-prefix=STATS
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; Radar 10266272
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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"
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target triple = "thumbv7-apple-ios4.0.0"
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; STATS-NOT: machine-sink
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define i32 @foo(i32 %h, i32 %arg1) nounwind readonly ssp {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.body, %entry
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%cmp = icmp slt i32 0, %h
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br i1 %cmp, label %for.body, label %if.end299
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for.body: ; preds = %for.cond
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%cond0 = icmp ne i32 %arg1, 42
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%v.5 = select i1 %cond0, i32 undef, i32 0
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%0 = load i8, i8* undef, align 1
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%conv88 = zext i8 %0 to i32
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%sub89 = sub nsw i32 0, %conv88
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%cond1 = icmp ne i32 %arg1, 23
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%v.8 = select i1 %cond1, i32 undef, i32 %sub89
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%1 = load i8, i8* null, align 1
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%conv108 = zext i8 %1 to i32
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%2 = load i8, i8* undef, align 1
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%conv110 = zext i8 %2 to i32
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%sub111 = sub nsw i32 %conv108, %conv110
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%cmp112 = icmp slt i32 %sub111, 0
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%sub115 = sub nsw i32 0, %sub111
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%abs = select i1 %cmp112, i32 %sub115, i32 %sub111
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%add95 = add i32 %v.5, %v.8
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%add117 = add i32 %add95, %abs
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br i1 undef, label %for.cond, label %if.end299
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if.end299: ; preds = %for.body, %for.cond
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%s.10 = phi i32 [ %add117, %for.body ], [ 0, %for.cond ]
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ret i32 %s.10
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}
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