| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; PR1271 |
| ; RUN: opt < %s -passes=instcombine -S | FileCheck %s |
| |
| %struct..0anon = type { i32, i32 } |
| %struct..1anon = type { double } |
| |
| define i32 @main() { |
| ; CHECK-LABEL: @main( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[U:%.*]] = alloca [[STRUCT__1ANON:%.*]], align 8 |
| ; CHECK-NEXT: store double 0x7FF0000000000000, ptr [[U]], align 8 |
| ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds [[STRUCT__0ANON:%.*]], ptr [[U]], i64 0, i32 1 |
| ; CHECK-NEXT: [[TMP6:%.*]] = load i32, ptr [[TMP5]], align 4 |
| ; CHECK-NEXT: [[TMP0:%.*]] = and i32 [[TMP6]], 2146435072 |
| ; CHECK-NEXT: [[DOTNOT:%.*]] = icmp eq i32 [[TMP0]], 2146435072 |
| ; CHECK-NEXT: br i1 [[DOTNOT]], label [[COND_FALSE:%.*]], label [[COND_TRUE:%.*]] |
| ; CHECK: cond_true: |
| ; CHECK-NEXT: ret i32 0 |
| ; CHECK: cond_false: |
| ; CHECK-NEXT: ret i32 1 |
| ; |
| entry: |
| %u = alloca %struct..1anon, align 8 |
| store double 0x7FF0000000000000, ptr %u |
| %tmp5 = getelementptr %struct..0anon, ptr %u, i32 0, i32 1 |
| %tmp6 = load i32, ptr %tmp5 |
| %tmp7 = shl i32 %tmp6, 1 |
| %tmp8 = lshr i32 %tmp7, 21 |
| %tmp89 = trunc i32 %tmp8 to i16 |
| icmp ne i16 %tmp89, 2047 |
| zext i1 %0 to i8 |
| icmp ne i8 %1, 0 |
| br i1 %2, label %cond_true, label %cond_false |
| |
| cond_true: |
| ret i32 0 |
| |
| cond_false: |
| ret i32 1 |
| } |
| |