| ; RUN: llc --show-mc-encoding < %s | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| target triple = "x86_64-apple-darwin10.0.0" |
| |
| define i32 @f0(i32* nocapture %x) nounwind readonly ssp { |
| entry: |
| %tmp1 = load i32* %x ; <i32> [#uses=2] |
| %tobool = icmp eq i32 %tmp1, 0 ; <i1> [#uses=1] |
| br i1 %tobool, label %if.end, label %return |
| |
| if.end: ; preds = %entry |
| |
| ; Check that we lower to the short form of cmpl, which has a fixed %eax |
| ; register. |
| ; |
| ; CHECK: cmpl $16777216, %eax |
| ; CHECK: # encoding: [0x3d,0x00,0x00,0x00,0x01] |
| %cmp = icmp eq i32 %tmp1, 16777216 ; <i1> [#uses=1] |
| |
| %conv = zext i1 %cmp to i32 ; <i32> [#uses=1] |
| ret i32 %conv |
| |
| return: ; preds = %entry |
| ret i32 0 |
| } |
| |
| define i32 @f1() nounwind { |
| %ax = tail call i16 asm sideeffect "", "={ax},~{dirflag},~{fpsr},~{flags}"() |
| %conv = sext i16 %ax to i32 |
| ret i32 %conv |
| |
| ; CHECK-LABEL: f1: |
| ; CHECK: cwtl ## encoding: [0x98] |
| } |
| |
| define i64 @f2() nounwind { |
| %eax = tail call i32 asm sideeffect "", "={ax},~{dirflag},~{fpsr},~{flags}"() |
| %conv = sext i32 %eax to i64 |
| ret i64 %conv |
| |
| ; CHECK-LABEL: f2: |
| ; CHECK: cltq ## encoding: [0x48,0x98] |
| } |
