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| author | Dan Gohman <gohman@apple.com> | 2009-04-23 15:16:49 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-04-23 15:16:49 +0000 |
| commit | 752ec7da506f5d41c08bd37e195750b57550ce68 (patch) | |
| tree | 29c9aa4f22339fc36ee937332eb664934ada172a /test | |
| parent | b1f321b5539a7f14864c0dc7ed44176785c62d14 (diff) | |
| download | llvm-752ec7da506f5d41c08bd37e195750b57550ce68.tar.gz llvm-752ec7da506f5d41c08bd37e195750b57550ce68.tar.bz2 llvm-752ec7da506f5d41c08bd37e195750b57550ce68.tar.xz | |
Change SCEVExpander's expandCodeFor to provide more flexibility
with the persistent insertion point, and change IndVars to make
use of it. This fixes a bug where IndVars was holding on to a
stale insertion point and forcing the SCEVExpander to continue to
use it.
This fixes PR4038.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69892 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/IndVarSimplify/casted-argument.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/casted-argument.ll b/test/Transforms/IndVarSimplify/casted-argument.ll index ae41e3a8b7..0a14c3e787 100644 --- a/test/Transforms/IndVarSimplify/casted-argument.ll +++ b/test/Transforms/IndVarSimplify/casted-argument.ll @@ -1,5 +1,6 @@ ; RUN: llvm-as < %s | opt -indvars -disable-output ; PR4009 +; PR4038 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" target triple = "i386-pc-linux-gnu" @@ -21,4 +22,27 @@ loop: ; preds = %loop, %if.else br label %loop } +define void @safe_bcopy_4038(i8* %from, i8* %to, i32 %size) nounwind { +entry: + br i1 false, label %if.else, label %if.then12 + +if.then12: ; preds = %entry + ret void + +if.else: ; preds = %entry + %sub.ptr.rhs.cast40 = ptrtoint i8* %from to i32 ; <i32> [#uses=1] + br label %if.end54 + +if.end54: ; preds = %if.end54, %if.else + %sub.ptr4912.pn = phi i8* [ %sub.ptr4912, %if.end54 ], [ null, %if.else ] ; <i8*> [#uses=1] + %sub.ptr7 = phi i8* [ %sub.ptr, %if.end54 ], [ null, %if.else ] ; <i8*> [#uses=2] + %sub.ptr.rhs.cast46.pn = ptrtoint i8* %from to i32 ; <i32> [#uses=1] + %sub.ptr.lhs.cast45.pn = ptrtoint i8* %to to i32 ; <i32> [#uses=1] + %sub.ptr.sub47.pn = sub i32 %sub.ptr.rhs.cast46.pn, %sub.ptr.lhs.cast45.pn ; <i32> [#uses=1] + %sub.ptr4912 = getelementptr i8* %sub.ptr4912.pn, i32 %sub.ptr.sub47.pn ; <i8*> [#uses=2] + tail call void @bcopy(i8* %sub.ptr4912, i8* %sub.ptr7, i32 0) nounwind + %sub.ptr = getelementptr i8* %sub.ptr7, i32 %sub.ptr.rhs.cast40 ; <i8*> [#uses=1] + br label %if.end54 +} + declare void @bcopy(i8* nocapture) nounwind |