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| author | Dan Gohman <gohman@apple.com> | 2009-05-27 20:00:18 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-05-27 20:00:18 +0000 |
| commit | f4d85325c09c23cd4f06e9121650926a767788fd (patch) | |
| tree | fae6158c31a803293b90cf06d056732802b6d2f1 /llvm/test/Transforms/LoopStrengthReduce | |
| parent | 7c1baf46d6897f03b9c20dbf2b2161e871c58697 (diff) | |
| download | bcm5719-llvm-f4d85325c09c23cd4f06e9121650926a767788fd.tar.gz bcm5719-llvm-f4d85325c09c23cd4f06e9121650926a767788fd.zip | |
In ChangeCompareStride, when the stride to be reused is truncated to
a smaller type, promoted its offset back up to the type of the new
comparison. This fixes PR4222.
llvm-svn: 72493
Diffstat (limited to 'llvm/test/Transforms/LoopStrengthReduce')
| -rw-r--r-- | llvm/test/Transforms/LoopStrengthReduce/change-compare-stride-trickiness-2.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopStrengthReduce/change-compare-stride-trickiness-2.ll b/llvm/test/Transforms/LoopStrengthReduce/change-compare-stride-trickiness-2.ll new file mode 100644 index 00000000000..e3cb3a50953 --- /dev/null +++ b/llvm/test/Transforms/LoopStrengthReduce/change-compare-stride-trickiness-2.ll @@ -0,0 +1,33 @@ +; RUN: llvm-as < %s | llc +; PR4222 + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "x86_64-pc-linux-gnu" +module asm ".ident\09\22$FreeBSD: head/sys/amd64/amd64/minidump_machdep.c 184499 2008-10-31 10:11:35Z kib $\22" + %struct.dumperinfo = type <{ i32 (i8*, i8*, i64, i64, i64)*, i8*, i32, i32, i64, i64 }> + +define void @minidumpsys(%struct.dumperinfo* %di) nounwind { +entry: + br label %if.end + +if.end: ; preds = %if.end52, %entry + br label %for.cond.i.preheader + +for.cond.i.preheader: ; preds = %if.end52, %if.end + %indvar688 = phi i64 [ 0, %if.end ], [ %indvar.next689, %if.end52 ] ; <i64> [#uses=3] + %tmp690 = shl i64 %indvar688, 12 ; <i64> [#uses=1] + %pa.0642 = add i64 %tmp690, 0 ; <i64> [#uses=1] + %indvar688703 = trunc i64 %indvar688 to i32 ; <i32> [#uses=1] + %tmp692693 = add i32 %indvar688703, 1 ; <i32> [#uses=1] + %phitmp = sext i32 %tmp692693 to i64 ; <i64> [#uses=1] + br i1 false, label %if.end52, label %land.lhs.true.i + +land.lhs.true.i: ; preds = %for.cond.i.preheader + %shr2.i = lshr i64 %pa.0642, 18 ; <i64> [#uses=0] + unreachable + +if.end52: ; preds = %for.cond.i.preheader + %phitmp654 = icmp ult i64 %phitmp, 512 ; <i1> [#uses=1] + %indvar.next689 = add i64 %indvar688, 1 ; <i64> [#uses=1] + br i1 %phitmp654, label %for.cond.i.preheader, label %if.end +} |
