blob: d1d28ae15b0daaa633da1aa31904b8a52b4544fe [file] [log] [blame]
Dan Gohmanda594cf2009-09-09 00:09:15 +00001; RUN: llc < %s | grep {subfc r3,r5,r4}
2; RUN: llc < %s | grep {subfze r4,r2}
Dale Johannesenda4d84a2010-02-03 01:40:33 +00003; RUN: llc < %s -regalloc=local | grep {subfc r2,r5,r4}
4; RUN: llc < %s -regalloc=local | grep {subfze r3,r3}
Dale Johannesen47e30e42008-09-24 23:13:09 +00005; The first argument of subfc must not be the same as any other register.
Dan Gohmanf17a25c2007-07-18 16:29:46 +00006
7; PR1357
8
9target 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"
10target triple = "powerpc-apple-darwin8.8.0"
11
12;long long test(int A, int B, int C) {
13; unsigned X, Y;
14; __asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2"
15; : "=r" (X), "=&r" (Y)
16; : "r" (A), "rI" (B), "r" (C));
17; return ((long long)Y << 32) | X;
18;}
19
Evan Chenga9823a22008-12-19 20:58:01 +000020define i64 @test(i32 %A, i32 %B, i32 %C) nounwind {
Dan Gohmanf17a25c2007-07-18 16:29:46 +000021entry:
22 %Y = alloca i32, align 4 ; <i32*> [#uses=2]
23 %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]
24 %tmp5 = load i32* %Y ; <i32> [#uses=1]
25 %tmp56 = zext i32 %tmp5 to i64 ; <i64> [#uses=1]
26 %tmp7 = shl i64 %tmp56, 32 ; <i64> [#uses=1]
27 %tmp89 = zext i32 %tmp4 to i64 ; <i64> [#uses=1]
28 %tmp10 = or i64 %tmp7, %tmp89 ; <i64> [#uses=1]
29 ret i64 %tmp10
30}