2009-09-12 02:01:28 +08:00
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; RUN: opt < %s -memcpyopt -S | not grep store
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; RUN: opt < %s -memcpyopt -S | grep {call.*llvm.memset}
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2008-03-22 13:37:16 +08:00
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; All the stores in this example should be merged into a single memset.
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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-f80:128:128"
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target triple = "i386-apple-darwin8"
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define void @foo(i8 signext %c) nounwind {
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entry:
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%x = alloca [19 x i8] ; <[19 x i8]*> [#uses=20]
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%tmp = getelementptr [19 x i8]* %x, i32 0, i32 0 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp, align 1
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%tmp5 = getelementptr [19 x i8]* %x, i32 0, i32 1 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp5, align 1
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%tmp9 = getelementptr [19 x i8]* %x, i32 0, i32 2 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp9, align 1
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%tmp13 = getelementptr [19 x i8]* %x, i32 0, i32 3 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp13, align 1
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%tmp17 = getelementptr [19 x i8]* %x, i32 0, i32 4 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp17, align 1
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%tmp21 = getelementptr [19 x i8]* %x, i32 0, i32 5 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp21, align 1
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%tmp25 = getelementptr [19 x i8]* %x, i32 0, i32 6 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp25, align 1
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%tmp29 = getelementptr [19 x i8]* %x, i32 0, i32 7 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp29, align 1
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%tmp33 = getelementptr [19 x i8]* %x, i32 0, i32 8 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp33, align 1
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%tmp37 = getelementptr [19 x i8]* %x, i32 0, i32 9 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp37, align 1
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%tmp41 = getelementptr [19 x i8]* %x, i32 0, i32 10 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp41, align 1
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%tmp45 = getelementptr [19 x i8]* %x, i32 0, i32 11 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp45, align 1
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%tmp49 = getelementptr [19 x i8]* %x, i32 0, i32 12 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp49, align 1
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%tmp53 = getelementptr [19 x i8]* %x, i32 0, i32 13 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp53, align 1
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%tmp57 = getelementptr [19 x i8]* %x, i32 0, i32 14 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp57, align 1
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%tmp61 = getelementptr [19 x i8]* %x, i32 0, i32 15 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp61, align 1
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%tmp65 = getelementptr [19 x i8]* %x, i32 0, i32 16 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp65, align 1
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%tmp69 = getelementptr [19 x i8]* %x, i32 0, i32 17 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp69, align 1
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%tmp73 = getelementptr [19 x i8]* %x, i32 0, i32 18 ; <i8*> [#uses=1]
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store i8 %c, i8* %tmp73, align 1
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%tmp76 = call i32 (...)* @bar( [19 x i8]* %x ) nounwind ; <i32> [#uses=0]
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ret void
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}
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declare i32 @bar(...)
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