| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s |
| ; rdar://6806252 |
| |
| define i64 @test(i32* %tmp13) nounwind { |
| ; CHECK-LABEL: test: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: .p2align 4, 0x90 |
| ; CHECK-NEXT: .LBB0_1: # %while.cond |
| ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: movl (%rdi), %eax |
| ; CHECK-NEXT: testb $1, %al |
| ; CHECK-NEXT: jne .LBB0_1 |
| ; CHECK-NEXT: # %bb.2: # %while.end |
| ; CHECK-NEXT: shrl %eax |
| ; CHECK-NEXT: retq |
| entry: |
| br label %while.cond |
| |
| while.cond: ; preds = %while.cond, %entry |
| %tmp15 = load i32, i32* %tmp13 ; <i32> [#uses=2] |
| %bf.lo = lshr i32 %tmp15, 1 ; <i32> [#uses=1] |
| %bf.lo.cleared = and i32 %bf.lo, 2147483647 ; <i32> [#uses=1] |
| %conv = zext i32 %bf.lo.cleared to i64 ; <i64> [#uses=1] |
| %bf.lo.cleared25 = and i32 %tmp15, 1 ; <i32> [#uses=1] |
| %tobool = icmp ne i32 %bf.lo.cleared25, 0 ; <i1> [#uses=1] |
| br i1 %tobool, label %while.cond, label %while.end |
| |
| while.end: ; preds = %while.cond |
| ret i64 %conv |
| } |
