1 ; RUN: llc --show-mc-encoding < %s | FileCheck %s 2 3 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" 4 target triple = "x86_64-apple-darwin10.0.0" 5 6 define i32 @f0(i32* nocapture %x) nounwind readonly ssp { 7 entry: 8 %tmp1 = load i32, i32* %x ; <i32> [#uses=2] 9 %tobool = icmp eq i32 %tmp1, 0 ; <i1> [#uses=1] 10 br i1 %tobool, label %if.end, label %return 11 12 if.end: ; preds = %entry 13 14 ; Check that we lower to the short form of cmpl, which has a fixed %eax 15 ; register. 16 ; 17 ; CHECK: cmpl $16777216, %eax 18 ; CHECK: # encoding: [0x3d,0x00,0x00,0x00,0x01] 19 %cmp = icmp eq i32 %tmp1, 16777216 ; <i1> [#uses=1] 20 21 %conv = zext i1 %cmp to i32 ; <i32> [#uses=1] 22 ret i32 %conv 23 24 return: ; preds = %entry 25 ret i32 0 26 } 27 28 define i32 @f1() nounwind { 29 %ax = tail call i16 asm sideeffect "", "={ax},~{dirflag},~{fpsr},~{flags}"() 30 %conv = sext i16 %ax to i32 31 ret i32 %conv 32 33 ; CHECK-LABEL: f1: 34 ; CHECK: cwtl ## encoding: [0x98] 35 } 36 37 define i64 @f2() nounwind { 38 %eax = tail call i32 asm sideeffect "", "={ax},~{dirflag},~{fpsr},~{flags}"() 39 %conv = sext i32 %eax to i64 40 ret i64 %conv 41 42 ; CHECK-LABEL: f2: 43 ; CHECK: cltq ## encoding: [0x48,0x98] 44 } 45
