Fix a FIXME about the format and add a test.

[oota-llvm.git] / test / Transforms / Mem2Reg / 2005-06-30-ReadBeforeWrite.ll

diff --git a/test/Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll b/test/Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll
index c64d848a61b083308bd75eed9ef34c41045d1a8c..74355961fbf94732ab610f78c05496045c469e9a 100644 (file)
--- a/test/Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll
+++ b/test/Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll
@@ -1,51 +1,47 @@
-; RUN: llvm-upgrade < %s | llvm-as | opt -mem2reg -instcombine | llvm-dis | grep store
+; RUN: opt < %s -mem2reg -instcombine -S | grep store
 ; PR590
 
-void %zero(sbyte* %p, int %n) {
+
+define void @zero(i8* %p, i32 %n) {
 entry:
-       %p_addr = alloca sbyte*         ; <sbyte**> [#uses=2]
-       %n_addr = alloca int            ; <int*> [#uses=2]
-       %i = alloca int         ; <int*> [#uses=6]
-       %out = alloca int               ; <int*> [#uses=2]
-       %undef = alloca int             ; <int*> [#uses=2]
-       store sbyte* %p, sbyte** %p_addr
-       store int %n, int* %n_addr
-       store int 0, int* %i
+       %p_addr = alloca i8*            ; <i8**> [#uses=2]
+       %n_addr = alloca i32            ; <i32*> [#uses=2]
+       %i = alloca i32         ; <i32*> [#uses=6]
+       %out = alloca i32               ; <i32*> [#uses=2]
+       %undef = alloca i32             ; <i32*> [#uses=2]
+       store i8* %p, i8** %p_addr
+       store i32 %n, i32* %n_addr
+       store i32 0, i32* %i
        br label %loopentry
-
 loopentry:             ; preds = %endif, %entry
-       %tmp.0 = load int* %n_addr              ; <int> [#uses=1]
-       %tmp.1 = add int %tmp.0, 1              ; <int> [#uses=1]
-       %tmp.2 = load int* %i           ; <int> [#uses=1]
-       %tmp.3 = setgt int %tmp.1, %tmp.2               ; <bool> [#uses=2]
-       %tmp.4 = cast bool %tmp.3 to int                ; <int> [#uses=0]
-       br bool %tmp.3, label %no_exit, label %return
-
+       %tmp.0 = load i32* %n_addr              ; <i32> [#uses=1]
+       %tmp.1 = add i32 %tmp.0, 1              ; <i32> [#uses=1]
+       %tmp.2 = load i32* %i           ; <i32> [#uses=1]
+       %tmp.3 = icmp sgt i32 %tmp.1, %tmp.2            ; <i1> [#uses=2]
+       %tmp.4 = zext i1 %tmp.3 to i32          ; <i32> [#uses=0]
+       br i1 %tmp.3, label %no_exit, label %return
 no_exit:               ; preds = %loopentry
-       %tmp.5 = load int* %undef               ; <int> [#uses=1]
-       store int %tmp.5, int* %out
-       store int 0, int* %undef
-       %tmp.6 = load int* %i           ; <int> [#uses=1]
-       %tmp.7 = setgt int %tmp.6, 0            ; <bool> [#uses=2]
-       %tmp.8 = cast bool %tmp.7 to int                ; <int> [#uses=0]
-       br bool %tmp.7, label %then, label %endif
-
+       %tmp.5 = load i32* %undef               ; <i32> [#uses=1]
+       store i32 %tmp.5, i32* %out
+       store i32 0, i32* %undef
+       %tmp.6 = load i32* %i           ; <i32> [#uses=1]
+       %tmp.7 = icmp sgt i32 %tmp.6, 0         ; <i1> [#uses=2]
+       %tmp.8 = zext i1 %tmp.7 to i32          ; <i32> [#uses=0]
+       br i1 %tmp.7, label %then, label %endif
 then:          ; preds = %no_exit
-       %tmp.9 = load sbyte** %p_addr           ; <sbyte*> [#uses=1]
-       %tmp.10 = load int* %i          ; <int> [#uses=1]
-       %tmp.11 = sub int %tmp.10, 1            ; <int> [#uses=1]
-       %tmp.12 = getelementptr sbyte* %tmp.9, int %tmp.11              ; <sbyte*> [#uses=1]
-       %tmp.13 = load int* %out                ; <int> [#uses=1]
-       %tmp.14 = cast int %tmp.13 to sbyte             ; <sbyte> [#uses=1]
-       store sbyte %tmp.14, sbyte* %tmp.12
+       %tmp.9 = load i8** %p_addr              ; <i8*> [#uses=1]
+       %tmp.10 = load i32* %i          ; <i32> [#uses=1]
+       %tmp.11 = sub i32 %tmp.10, 1            ; <i32> [#uses=1]
+       %tmp.12 = getelementptr i8* %tmp.9, i32 %tmp.11         ; <i8*> [#uses=1]
+       %tmp.13 = load i32* %out                ; <i32> [#uses=1]
+       %tmp.14 = trunc i32 %tmp.13 to i8               ; <i8> [#uses=1]
+       store i8 %tmp.14, i8* %tmp.12
        br label %endif
-
 endif:         ; preds = %then, %no_exit
-       %tmp.15 = load int* %i          ; <int> [#uses=1]
-       %inc = add int %tmp.15, 1               ; <int> [#uses=1]
-       store int %inc, int* %i
+       %tmp.15 = load i32* %i          ; <i32> [#uses=1]
+       %inc = add i32 %tmp.15, 1               ; <i32> [#uses=1]
+       store i32 %inc, i32* %i
        br label %loopentry
-
 return:                ; preds = %loopentry
        ret void
 }