diff options
Diffstat (limited to 'test/CodeGen/ARM/va_arg.ll')
| -rw-r--r-- | test/CodeGen/ARM/va_arg.ll | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/va_arg.ll b/test/CodeGen/ARM/va_arg.ll new file mode 100644 index 0000000..7cb9762 --- /dev/null +++ b/test/CodeGen/ARM/va_arg.ll @@ -0,0 +1,41 @@ +; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi | FileCheck %s +; Test that we correctly align elements when using va_arg + +; CHECK: test1: +; CHECK-NOT: bfc +; CHECK: add r0, r0, #7 +; CHECK: bfc r0, #0, #3 +; CHECK-NOT: bfc + +define i64 @test1(i32 %i, ...) nounwind optsize { +entry: + %g = alloca i8*, align 4 + %g1 = bitcast i8** %g to i8* + call void @llvm.va_start(i8* %g1) + %0 = va_arg i8** %g, i64 + call void @llvm.va_end(i8* %g1) + ret i64 %0 +} + +; CHECK: test2: +; CHECK-NOT: bfc +; CHECK: add r0, r0, #7 +; CHECK: bfc r0, #0, #3 +; CHECK-NOT: bfc +; CHECK: bx lr + +define double @test2(i32 %a, i32 %b, ...) nounwind optsize { +entry: + %ap = alloca i8*, align 4 ; <i8**> [#uses=3] + %ap1 = bitcast i8** %ap to i8* ; <i8*> [#uses=2] + call void @llvm.va_start(i8* %ap1) + %0 = va_arg i8** %ap, i32 ; <i32> [#uses=0] + %1 = va_arg i8** %ap, double ; <double> [#uses=1] + call void @llvm.va_end(i8* %ap1) + ret double %1 +} + + +declare void @llvm.va_start(i8*) nounwind + +declare void @llvm.va_end(i8*) nounwind |
