From ada759d5fa8a3ecc0e97d88761badfba9193587f Mon Sep 17 00:00:00 2001
From: Chad Rosier <mcrosier@apple.com>
Date: Wed, 30 May 2012 17:23:22 +0000
Subject: [arm-fast-isel] Add support for the llvm.frameaddress() intrinsic.
 Patch by Jush Lu <jush.msn@gmail.com>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157696 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/ARM/fast-isel-frameaddr.ll | 100 ++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 test/CodeGen/ARM/fast-isel-frameaddr.ll

(limited to 'test/CodeGen/ARM/fast-isel-frameaddr.ll')

diff --git a/test/CodeGen/ARM/fast-isel-frameaddr.ll b/test/CodeGen/ARM/fast-isel-frameaddr.ll
new file mode 100644
index 0000000..8f7b294
--- /dev/null
+++ b/test/CodeGen/ARM/fast-isel-frameaddr.ll
@@ -0,0 +1,100 @@
+; RUN: llc < %s -O0 -fast-isel-abort -mtriple=armv7-apple-darwin | FileCheck %s --check-prefix=DARWIN-ARM
+; RUN: llc < %s -O0 -fast-isel-abort -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=LINUX-ARM
+; RUN: llc < %s -O0 -fast-isel-abort -mtriple=thumbv7-apple-darwin | FileCheck %s --check-prefix=DARWIN-THUMB2
+; RUN: llc < %s -O0 -fast-isel-abort -mtriple=thumbv7-linux-gnueabi | FileCheck %s --check-prefix=LINUX-THUMB2
+
+define i8* @frameaddr_index0() nounwind {
+entry:
+; DARWIN-ARM: frameaddr_index0:
+; DARWIN-ARM: push {r7}
+; DARWIN-ARM: mov r7, sp
+; DARWIN-ARM: mov r0, r7
+
+; DARWIN-THUMB2: frameaddr_index0:
+; DARWIN-THUMB2: str r7, [sp, #-4]!
+; DARWIN-THUMB2: mov r7, sp
+; DARWIN-THUMB2: mov r0, r7
+
+; LINUX-ARM: frameaddr_index0:
+; LINUX-ARM: push {r11}
+; LINUX-ARM: mov r11, sp
+; LINUX-ARM: mov r0, r11
+
+; LINUX-THUMB2: frameaddr_index0:
+; LINUX-THUMB2: str r7, [sp, #-4]!
+; LINUX-THUMB2: mov r7, sp
+; LINUX-THUMB2: mov r0, r7
+
+  %0 = call i8* @llvm.frameaddress(i32 0)
+  ret i8* %0
+}
+
+define i8* @frameaddr_index1() nounwind {
+entry:
+; DARWIN-ARM: frameaddr_index1:
+; DARWIN-ARM: push {r7}
+; DARWIN-ARM: mov r7, sp
+; DARWIN-ARM: mov r0, r7
+; DARWIN-ARM: ldr r0, [r0]
+
+; DARWIN-THUMB2: frameaddr_index1:
+; DARWIN-THUMB2: str r7, [sp, #-4]!
+; DARWIN-THUMB2: mov r7, sp
+; DARWIN-THUMB2: mov r0, r7
+; DARWIN-THUMB2: ldr r0, [r0]
+
+; LINUX-ARM: frameaddr_index1:
+; LINUX-ARM: push {r11}
+; LINUX-ARM: mov r11, sp
+; LINUX-ARM: mov r0, r11
+; LINUX-ARM: ldr r0, [r0]
+
+; LINUX-THUMB2: frameaddr_index1:
+; LINUX-THUMB2: str r7, [sp, #-4]!
+; LINUX-THUMB2: mov r7, sp
+; LINUX-THUMB2: mov r0, r7
+; LINUX-THUMB2: ldr r0, [r0]
+
+  %0 = call i8* @llvm.frameaddress(i32 1)
+  ret i8* %0
+}
+
+define i8* @frameaddr_index3() nounwind {
+entry:
+; DARWIN-ARM: frameaddr_index3:
+; DARWIN-ARM: push {r7}
+; DARWIN-ARM: mov r7, sp
+; DARWIN-ARM: mov r0, r7
+; DARWIN-ARM: ldr r0, [r0]
+; DARWIN-ARM: ldr r0, [r0]
+; DARWIN-ARM: ldr r0, [r0]
+
+; DARWIN-THUMB2: frameaddr_index3:
+; DARWIN-THUMB2: str r7, [sp, #-4]!
+; DARWIN-THUMB2: mov r7, sp
+; DARWIN-THUMB2: mov r0, r7
+; DARWIN-THUMB2: ldr r0, [r0]
+; DARWIN-THUMB2: ldr r0, [r0]
+; DARWIN-THUMB2: ldr r0, [r0]
+
+; LINUX-ARM: frameaddr_index3:
+; LINUX-ARM: push {r11}
+; LINUX-ARM: mov r11, sp
+; LINUX-ARM: mov r0, r11
+; LINUX-ARM: ldr r0, [r0]
+; LINUX-ARM: ldr r0, [r0]
+; LINUX-ARM: ldr r0, [r0]
+
+; LINUX-THUMB2: frameaddr_index3:
+; LINUX-THUMB2: str r7, [sp, #-4]!
+; LINUX-THUMB2: mov r7, sp
+; LINUX-THUMB2: mov r0, r7
+; LINUX-THUMB2: ldr r0, [r0]
+; LINUX-THUMB2: ldr r0, [r0]
+; LINUX-THUMB2: ldr r0, [r0]
+
+  %0 = call i8* @llvm.frameaddress(i32 3)
+  ret i8* %0
+}
+
+declare i8* @llvm.frameaddress(i32) nounwind readnone
-- 
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