1 ; RUN: llc < %s -verify-machineinstrs -mtriple=powerpc-unknown-unkown \
2 ; RUN: -mcpu=pwr7 -O0 2>&1 | FileCheck %s
3 ; RUN: llc < %s -verify-machineinstrs -mtriple=powerpc64-unknown-unkown \
4 ; RUN: -mcpu=pwr7 -O0 2>&1 | FileCheck %s
6 define void @test_r1_clobber() {
8 call void asm sideeffect "nop", "~{r1}"()
12 ; CHECK: warning: inline asm clobber list contains reserved registers: R1
13 ; CHECK-NEXT: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.
15 define void @test_x1_clobber() {
17 call void asm sideeffect "nop", "~{x1}"()
21 ; CHECK: warning: inline asm clobber list contains reserved registers: X1
22 ; CHECK-NEXT: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.
24 ; CHECK: warning: inline asm clobber list contains reserved registers: R31
25 ; CHECK-NEXT: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.
27 @a = dso_local global i32 100, align 4
28 define dso_local signext i32 @main() {
30 %retval = alloca i32, align 4
31 %old = alloca i64, align 8
32 store i32 0, ptr %retval, align 4
33 call void asm sideeffect "li 31, 1", "~{r31}"()
34 call void asm sideeffect "li 30, 1", "~{r30}"()
35 %0 = call i64 asm sideeffect "mr $0, 31", "=r"()
36 store i64 %0, ptr %old, align 8
37 %1 = load i32, ptr @a, align 4
38 %conv = sext i32 %1 to i64
39 %2 = alloca i8, i64 %conv, align 16
40 %3 = load i64, ptr %old, align 8
41 %conv1 = trunc i64 %3 to i32