| Rafael Espindola | 72d13ff | 2010-06-26 18:22:20 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi | FileCheck %s |
| 2 | ; Test that we correctly align elements when using va_arg |
| 3 | |
| Rafael Espindola | cbeeae2 | 2010-07-11 04:01:49 +0000 | [diff] [blame] | 4 | ; CHECK: test1: |
| 5 | ; CHECK-NOT: bfc |
| Rafael Espindola | 72d13ff | 2010-06-26 18:22:20 +0000 | [diff] [blame] | 6 | ; CHECK: add r0, r0, #7 |
| 7 | ; CHECK: bfc r0, #0, #3 |
| Rafael Espindola | cbeeae2 | 2010-07-11 04:01:49 +0000 | [diff] [blame] | 8 | ; CHECK-NOT: bfc |
| Rafael Espindola | 72d13ff | 2010-06-26 18:22:20 +0000 | [diff] [blame] | 9 | |
| Rafael Espindola | cbeeae2 | 2010-07-11 04:01:49 +0000 | [diff] [blame] | 10 | define i64 @test1(i32 %i, ...) nounwind optsize { |
| Rafael Espindola | 72d13ff | 2010-06-26 18:22:20 +0000 | [diff] [blame] | 11 | entry: |
| 12 | %g = alloca i8*, align 4 |
| 13 | %g1 = bitcast i8** %g to i8* |
| 14 | call void @llvm.va_start(i8* %g1) |
| 15 | %0 = va_arg i8** %g, i64 |
| 16 | call void @llvm.va_end(i8* %g1) |
| 17 | ret i64 %0 |
| 18 | } |
| 19 | |
| Rafael Espindola | cbeeae2 | 2010-07-11 04:01:49 +0000 | [diff] [blame] | 20 | ; CHECK: test2: |
| 21 | ; CHECK-NOT: bfc |
| 22 | ; CHECK: add r0, r0, #7 |
| 23 | ; CHECK: bfc r0, #0, #3 |
| 24 | ; CHECK-NOT: bfc |
| 25 | ; CHECK: bx lr |
| 26 | |
| 27 | define double @test2(i32 %a, i32 %b, ...) nounwind optsize { |
| 28 | entry: |
| 29 | %ap = alloca i8*, align 4 ; <i8**> [#uses=3] |
| 30 | %ap1 = bitcast i8** %ap to i8* ; <i8*> [#uses=2] |
| 31 | call void @llvm.va_start(i8* %ap1) |
| 32 | %0 = va_arg i8** %ap, i32 ; <i32> [#uses=0] |
| 33 | %1 = va_arg i8** %ap, double ; <double> [#uses=1] |
| 34 | call void @llvm.va_end(i8* %ap1) |
| 35 | ret double %1 |
| 36 | } |
| 37 | |
| 38 | |
| Rafael Espindola | 72d13ff | 2010-06-26 18:22:20 +0000 | [diff] [blame] | 39 | declare void @llvm.va_start(i8*) nounwind |
| 40 | |
| 41 | declare void @llvm.va_end(i8*) nounwind |