| ; PR1271 |
| ; RUN: opt < %s -instcombine -S | \ |
| ; RUN: grep "icmp eq i32 .tmp.*, 2146435072" |
| %struct..0anon = type { i32, i32 } |
| %struct..1anon = type { double } |
| |
| define i32 @main() { |
| entry: |
| %u = alloca %struct..1anon, align 8 ; <%struct..1anon*> [#uses=4] |
| %tmp1 = getelementptr %struct..1anon* %u, i32 0, i32 0 ; <double*> [#uses=1] |
| store double 0x7FF0000000000000, double* %tmp1 |
| %tmp3 = getelementptr %struct..1anon* %u, i32 0, i32 0 ; <double*> [#uses=1] |
| %tmp34 = bitcast double* %tmp3 to %struct..0anon* ; <%struct..0anon*> [#uses=1] |
| %tmp5 = getelementptr %struct..0anon* %tmp34, i32 0, i32 1 ; <i32*> [#uses=1] |
| %tmp6 = load i32* %tmp5 ; <i32> [#uses=1] |
| %tmp7 = shl i32 %tmp6, 1 ; <i32> [#uses=1] |
| %tmp8 = lshr i32 %tmp7, 21 ; <i32> [#uses=1] |
| %tmp89 = trunc i32 %tmp8 to i16 ; <i16> [#uses=1] |
| icmp ne i16 %tmp89, 2047 ; <i1>:0 [#uses=1] |
| zext i1 %0 to i8 ; <i8>:1 [#uses=1] |
| icmp ne i8 %1, 0 ; <i1>:2 [#uses=1] |
| br i1 %2, label %cond_true, label %cond_false |
| |
| cond_true: ; preds = %entry |
| ret i32 0 |
| |
| cond_false: ; preds = %entry |
| ret i32 1 |
| } |
