| Dan Gohman | fce288f | 2009-09-09 00:09:15 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=arm | FileCheck %s |
| Evan Cheng | 02b985c | 2007-01-19 09:20:23 +0000 | [diff] [blame] | 2 | |
| Evan Cheng | 0e87e23 | 2009-08-28 00:31:43 +0000 | [diff] [blame] | 3 | define i32 @test1(i8* %t1) nounwind { |
| 4 | ; CHECK: ldrb |
| 5 | %tmp.u = load i8* %t1 |
| Evan Cheng | 7c3992f | 2007-01-23 22:47:58 +0000 | [diff] [blame] | 6 | %tmp1.s = zext i8 %tmp.u to i32 |
| 7 | ret i32 %tmp1.s |
| Evan Cheng | 02b985c | 2007-01-19 09:20:23 +0000 | [diff] [blame] | 8 | } |
| 9 | |
| Evan Cheng | 0e87e23 | 2009-08-28 00:31:43 +0000 | [diff] [blame] | 10 | define i32 @test2(i16* %t1) nounwind { |
| 11 | ; CHECK: ldrh |
| 12 | %tmp.u = load i16* %t1 |
| Evan Cheng | 7c3992f | 2007-01-23 22:47:58 +0000 | [diff] [blame] | 13 | %tmp1.s = zext i16 %tmp.u to i32 |
| 14 | ret i32 %tmp1.s |
| Evan Cheng | 02b985c | 2007-01-19 09:20:23 +0000 | [diff] [blame] | 15 | } |
| 16 | |
| Evan Cheng | 0e87e23 | 2009-08-28 00:31:43 +0000 | [diff] [blame] | 17 | define i32 @test3(i8* %t0) nounwind { |
| 18 | ; CHECK: ldrsb |
| 19 | %tmp.s = load i8* %t0 |
| Evan Cheng | 7c3992f | 2007-01-23 22:47:58 +0000 | [diff] [blame] | 20 | %tmp1.s = sext i8 %tmp.s to i32 |
| 21 | ret i32 %tmp1.s |
| Evan Cheng | 02b985c | 2007-01-19 09:20:23 +0000 | [diff] [blame] | 22 | } |
| 23 | |
| Evan Cheng | 0e87e23 | 2009-08-28 00:31:43 +0000 | [diff] [blame] | 24 | define i32 @test4(i16* %t0) nounwind { |
| 25 | ; CHECK: ldrsh |
| 26 | %tmp.s = load i16* %t0 |
| 27 | %tmp1.s = sext i16 %tmp.s to i32 |
| 28 | ret i32 %tmp1.s |
| 29 | } |
| 30 | |
| 31 | define i32 @test5() nounwind { |
| 32 | ; CHECK: mov r0, #0 |
| 33 | ; CHECK: ldrsh |
| Evan Cheng | 7c3992f | 2007-01-23 22:47:58 +0000 | [diff] [blame] | 34 | %tmp.s = load i16* null |
| 35 | %tmp1.s = sext i16 %tmp.s to i32 |
| 36 | ret i32 %tmp1.s |
| Evan Cheng | 02b985c | 2007-01-19 09:20:23 +0000 | [diff] [blame] | 37 | } |