| Simon Pilgrim | 4793a11 | 2017-07-18 12:31:46 +0000 | [diff] [blame^] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| 2 | ; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=haswell | FileCheck %s --check-prefix=X86 |
| 3 | ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=haswell | FileCheck %s --check-prefix=X64 |
| 4 | |
| 5 | @var_580 = external local_unnamed_addr global i8, align 1 |
| 6 | |
| 7 | define void @foo() { |
| 8 | ; X86-LABEL: foo: |
| 9 | ; X86: # BB#0: # %entry |
| 10 | ; X86-NEXT: movsbl var_580, %eax |
| 11 | ; X86-NEXT: testl $-536870913, %eax # imm = 0xDFFFFFFF |
| 12 | ; X86-NEXT: jne .LBB0_1 |
| 13 | ; X86-NEXT: # BB#2: # %if.end13 |
| 14 | ; X86-NEXT: retl |
| 15 | ; X86-NEXT: .LBB0_1: # %if.then11 |
| 16 | ; |
| 17 | ; X64-LABEL: foo: |
| 18 | ; X64: # BB#0: # %entry |
| 19 | ; X64-NEXT: movsbl {{.*}}(%rip), %eax |
| 20 | ; X64-NEXT: testl $-536870913, %eax # imm = 0xDFFFFFFF |
| 21 | ; X64-NEXT: jne .LBB0_1 |
| 22 | ; X64-NEXT: # BB#2: # %if.end13 |
| 23 | ; X64-NEXT: retq |
| 24 | ; X64-NEXT: .LBB0_1: # %if.then11 |
| 25 | entry: |
| 26 | %tmp = icmp ugt i8 undef, 60 |
| 27 | %phitmp = zext i1 %tmp to i16 |
| 28 | br label %if.end |
| 29 | |
| 30 | if.end: |
| 31 | %tmp1 = load i8, i8* @var_580, align 1 |
| 32 | %conv7 = sext i8 %tmp1 to i32 |
| 33 | %conv8 = zext i16 %phitmp to i32 |
| 34 | %mul = shl nuw nsw i32 %conv8, 1 |
| 35 | %div9 = udiv i32 %mul, 71 |
| 36 | %sub = add nsw i32 %div9, -3 |
| 37 | %shl = shl i32 1, %sub |
| 38 | %neg = xor i32 %shl, -1 |
| 39 | %and = and i32 %neg, %conv7 |
| 40 | %tobool10 = icmp eq i32 %and, 0 |
| 41 | br i1 %tobool10, label %if.end13, label %if.then11 |
| 42 | |
| 43 | if.then11: |
| 44 | unreachable |
| 45 | |
| 46 | if.end13: |
| 47 | ret void |
| 48 | } |