From 3c14f24c9da3f811d3530e984e692acf1a471b91 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Sat, 28 May 2011 01:40:44 +0000
Subject: Implement the 'M' output modifier for arm inline asm. This is fairly
 register allocation dependent and will occasionally break. WIP in the
 register allocator to model paired/etc registers.

rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132242 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/ARM/arm-modifier.ll | 37 +++++++++++++++++++++++++++----------
 1 file changed, 27 insertions(+), 10 deletions(-)

(limited to 'test/CodeGen')

diff --git a/test/CodeGen/ARM/arm-modifier.ll b/test/CodeGen/ARM/arm-modifier.ll
index 6dd3989728..0a7bb6cd21 100644
--- a/test/CodeGen/ARM/arm-modifier.ll
+++ b/test/CodeGen/ARM/arm-modifier.ll
@@ -1,6 +1,6 @@
 ; RUN: llc < %s -march=arm -mattr=+vfp2 | FileCheck %s
 
-define i32 @foo(float %scale, float %scale2) nounwind ssp {
+define i32 @foo(float %scale, float %scale2) nounwind {
 entry:
   %scale.addr = alloca float, align 4
   %scale2.addr = alloca float, align 4
@@ -8,35 +8,52 @@ entry:
   store float %scale2, float* %scale2.addr, align 4
   %tmp = load float* %scale.addr, align 4
   %tmp1 = load float* %scale2.addr, align 4
-  call void asm sideeffect "vmul.f32    q0, q0, ${0:y} \0A\09vmul.f32    q1, q1, ${0:y} \0A\09vmul.f32    q1, q0, ${1:y} \0A\09", "w,w,~{q0},~{q1}"(float %tmp, float %tmp1) nounwind, !srcloc !0
+  call void asm sideeffect "vmul.f32    q0, q0, ${0:y} \0A\09vmul.f32    q1, q1, ${0:y} \0A\09vmul.f32    q1, q0, ${1:y} \0A\09", "w,w,~{q0},~{q1}"(float %tmp, float %tmp1) nounwind
   ret i32 0
 }
 
-!0 = metadata !{i32 56, i32 89, i32 128, i32 168}
-
-define void @f0() nounwind ssp {
+define void @f0() nounwind {
 entry:
 ; CHECK: f0
 ; CHECK: .word -1
-call void asm sideeffect ".word ${0:B} \0A\09", "i"(i32 0) nounwind, !srcloc !0
+call void asm sideeffect ".word ${0:B} \0A\09", "i"(i32 0) nounwind
 ret void
 }
 
-define void @f1() nounwind ssp {
+define void @f1() nounwind {
 entry:
 ; CHECK: f1
 ; CHECK: .word 65535
-call void asm sideeffect ".word ${0:L} \0A\09", "i"(i32 -1) nounwind, !srcloc !0
+call void asm sideeffect ".word ${0:L} \0A\09", "i"(i32 -1) nounwind
 ret void
 }
 
 @f2_ptr = internal global i32* @f2_var, align 4
 @f2_var = external global i32
 
-define void @f2() nounwind ssp {
+define void @f2() nounwind {
 entry:
 ; CHECK: f2
 ; CHECK: ldr r0, [r{{[0-9]+}}]
-call void asm sideeffect "ldr r0, [${0:m}]\0A\09", "*m,~{r0}"(i32** @f2_ptr) nounwind, !srcloc !0
+call void asm sideeffect "ldr r0, [${0:m}]\0A\09", "*m,~{r0}"(i32** @f2_ptr) nounwind
+ret void
+}
+
+@f3_ptr = internal global i64* @f3_var, align 4
+@f3_var = external global i64
+@f3_var2 = external global i64
+
+define void @f3() nounwind {
+entry:
+; CHECK: f3
+; CHECK: stm r{{[0-9]+}}, {[[REG1:(r[0-9]+)]], r{{[0-9]+}}}
+; CHECK: adds lr, [[REG1]]
+; CHECK: ldm r{{[0-9]+}}, {r{{[0-9]+}}, r{{[0-9]+}}}
+%tmp = load i64* @f3_var, align 4
+%tmp1 = load i64* @f3_var2, align 4
+%0 = call i64 asm sideeffect "stm ${0:m}, ${1:M}\0A\09adds $3, $1\0A\09", "=*m,=r,1,r"(i64** @f3_ptr, i64 %tmp, i64 %tmp1) nounwind
+store i64 %0, i64* @f3_var, align 4
+%1 = call i64 asm sideeffect "ldm ${1:m}, ${0:M}\0A\09", "=r,*m"(i64** @f3_ptr) nounwind
+store i64 %1, i64* @f3_var, align 4
 ret void
 }
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