Dan Gohman | da594cf | 2009-09-09 00:09:15 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s | grep {subfc r3,r5,r4} |
| 2 | ; RUN: llc < %s | grep {subfze r4,r2} |
Dale Johannesen | da4d84a | 2010-02-03 01:40:33 +0000 | [diff] [blame] | 3 | ; RUN: llc < %s -regalloc=local | grep {subfc r2,r5,r4} |
| 4 | ; RUN: llc < %s -regalloc=local | grep {subfze r3,r3} |
Dale Johannesen | 47e30e4 | 2008-09-24 23:13:09 +0000 | [diff] [blame] | 5 | ; The first argument of subfc must not be the same as any other register. |
Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 6 | |
| 7 | ; PR1357 |
| 8 | |
| 9 | 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" |
| 10 | target 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 Cheng | a9823a2 | 2008-12-19 20:58:01 +0000 | [diff] [blame] | 20 | define i64 @test(i32 %A, i32 %B, i32 %C) nounwind { |
Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 21 | entry: |
| 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 | } |