1 ; RUN: llc < %s | FileCheck %s
2 ; RUN: llc < %s -regalloc=local | FileCheck -check-prefix=LOCAL %s
3 ; RUN: llc < %s -regalloc=fast | FileCheck -check-prefix=FAST %s
4 ; The first argument of subfc must not be the same as any other register.
6 ; CHECK: subfc r3,r5,r4
8 ; LOCAL: subfc r6,r5,r4
10 ; FAST: subfc r9,r8,r7
15 target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
16 target triple = "powerpc-apple-darwin8.8.0"
18 ;long long test(int A, int B, int C) {
20 ; __asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2"
21 ; : "=r" (X), "=&r" (Y)
22 ; : "r" (A), "rI" (B), "r" (C));
23 ; return ((long long)Y << 32) | X;
26 define i64 @test(i32 %A, i32 %B, i32 %C) nounwind {
28 %Y = alloca i32, align 4 ; <i32*> [#uses=2]
29 %tmp4 = call i32 asm "subf${3:I}c $1,$4,$3\0A\09subfze $0,$2", "=r,=*&r,r,rI,r"( i32* %Y, i32 %A, i32 %B, i32 %C ) ; <i32> [#uses=1]
30 %tmp5 = load i32* %Y ; <i32> [#uses=1]
31 %tmp56 = zext i32 %tmp5 to i64 ; <i64> [#uses=1]
32 %tmp7 = shl i64 %tmp56, 32 ; <i64> [#uses=1]
33 %tmp89 = zext i32 %tmp4 to i64 ; <i64> [#uses=1]
34 %tmp10 = or i64 %tmp7, %tmp89 ; <i64> [#uses=1]