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authorShih-wei Liao <sliao@google.com>2010-02-10 11:10:31 -0800
committerShih-wei Liao <sliao@google.com>2010-02-10 11:10:31 -0800
commite264f62ca09a8f65c87a46d562a4d0f9ec5d457e (patch)
tree59e3d57ef656cef79afa708ae0a3daf25cd91fcf /test/CodeGen/Generic/2003-07-08-BadCastToBool.ll
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Check in LLVM r95781.
Diffstat (limited to 'test/CodeGen/Generic/2003-07-08-BadCastToBool.ll')
-rw-r--r--test/CodeGen/Generic/2003-07-08-BadCastToBool.ll34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/2003-07-08-BadCastToBool.ll b/test/CodeGen/Generic/2003-07-08-BadCastToBool.ll
new file mode 100644
index 0000000..8019caa
--- /dev/null
+++ b/test/CodeGen/Generic/2003-07-08-BadCastToBool.ll
@@ -0,0 +1,34 @@
+; RUN: llc < %s
+
+;; Date: Jul 8, 2003.
+;; From: test/Programs/MultiSource/Olden-perimeter
+;; Function: int %adj(uint %d.1, uint %ct.1)
+;;
+;; Errors: (1) cast-int-to-bool was being treated as a NOP (i.e., the int
+;; register was treated as effectively true if non-zero).
+;; This cannot be used for later boolean operations.
+;; (2) (A or NOT(B)) was being folded into A orn B, which is ok
+;; for bitwise operations but not booleans! For booleans,
+;; the result has to be compared with 0.
+
+@.str_1 = internal constant [30 x i8] c"d = %d, ct = %d, d ^ ct = %d\0A\00"
+
+declare i32 @printf(i8*, ...)
+
+define i32 @adj(i32 %d.1, i32 %ct.1) {
+entry:
+ %tmp.19 = icmp eq i32 %ct.1, 2 ; <i1> [#uses=1]
+ %tmp.22.not = trunc i32 %ct.1 to i1 ; <i1> [#uses=1]
+ %tmp.221 = xor i1 %tmp.22.not, true ; <i1> [#uses=1]
+ %tmp.26 = or i1 %tmp.19, %tmp.221 ; <i1> [#uses=1]
+ %tmp.27 = zext i1 %tmp.26 to i32 ; <i32> [#uses=1]
+ ret i32 %tmp.27
+}
+
+define i32 @main() {
+entry:
+ %result = call i32 @adj( i32 3, i32 2 ) ; <i32> [#uses=1]
+ %tmp.0 = call i32 (i8*, ...)* @printf( i8* getelementptr ([30 x i8]* @.str_1, i64 0, i64 0), i32 3, i32 2, i32 %result ) ; <i32> [#uses=0]
+ ret i32 0
+}
+