|
 |
158546 |
From d851495f2fe614c4c860bda1bd3c80bfbe48360b Mon Sep 17 00:00:00 2001
|
|
|
158546 |
From: Jonas Paulsson <paulsson@linux.vnet.ibm.com>
|
|
|
158546 |
Date: Thu, 8 Oct 2020 13:18:29 +0200
|
|
|
158546 |
Subject: [PATCH] [SystemZ] Use LA instead of AGR in eliminateFrameIndex().
|
|
|
158546 |
|
|
|
158546 |
Since AGR clobbers CC it should not be used here.
|
|
|
158546 |
|
|
|
158546 |
Fixes https://bugs.llvm.org/show_bug.cgi?id=47736.
|
|
|
158546 |
|
|
|
158546 |
Review: Ulrich Weigand
|
|
|
158546 |
Differential Revision: https://reviews.llvm.org/D89034
|
|
|
158546 |
---
|
|
|
158546 |
.../Target/SystemZ/SystemZRegisterInfo.cpp | 4 +--
|
|
|
158546 |
llvm/test/CodeGen/SystemZ/frame-14.ll | 26 +++++++++----------
|
|
|
158546 |
llvm/test/CodeGen/SystemZ/frame-16.ll | 4 +--
|
|
|
158546 |
3 files changed, 17 insertions(+), 17 deletions(-)
|
|
|
158546 |
|
|
|
158546 |
diff --git a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp
|
|
|
158546 |
index 53b06c6e7e6d..88212e52460f 100644
|
|
|
158546 |
--- a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp
|
|
|
158546 |
+++ b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp
|
|
|
158546 |
@@ -322,8 +322,8 @@ SystemZRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator MI,
|
|
|
158546 |
// Load the high offset into the scratch register and use it as
|
|
|
158546 |
// an index.
|
|
|
158546 |
TII->loadImmediate(MBB, MI, ScratchReg, HighOffset);
|
|
|
158546 |
- BuildMI(MBB, MI, DL, TII->get(SystemZ::AGR),ScratchReg)
|
|
|
158546 |
- .addReg(ScratchReg, RegState::Kill).addReg(BasePtr);
|
|
|
158546 |
+ BuildMI(MBB, MI, DL, TII->get(SystemZ::LA), ScratchReg)
|
|
|
158546 |
+ .addReg(BasePtr, RegState::Kill).addImm(0).addReg(ScratchReg);
|
|
|
158546 |
}
|
|
|
158546 |
|
|
|
158546 |
// Use the scratch register as the base. It then dies here.
|
|
|
158546 |
diff --git a/llvm/test/CodeGen/SystemZ/frame-14.ll b/llvm/test/CodeGen/SystemZ/frame-14.ll
|
|
|
158546 |
index e70731249b42..193ff81123c5 100644
|
|
|
158546 |
--- a/llvm/test/CodeGen/SystemZ/frame-14.ll
|
|
|
158546 |
+++ b/llvm/test/CodeGen/SystemZ/frame-14.ll
|
|
|
158546 |
@@ -85,13 +85,13 @@ define void @f3() {
|
|
|
158546 |
define void @f4() {
|
|
|
158546 |
; CHECK-NOFP-LABEL: f4:
|
|
|
158546 |
; CHECK-NOFP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-NOFP: agr %r1, %r15
|
|
|
158546 |
+; CHECK-NOFP: la %r1, 0(%r1,%r15)
|
|
|
158546 |
; CHECK-NOFP: mvi 0(%r1), 42
|
|
|
158546 |
; CHECK-NOFP: br %r14
|
|
|
158546 |
;
|
|
|
158546 |
; CHECK-FP-LABEL: f4:
|
|
|
158546 |
; CHECK-FP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-FP: agr %r1, %r11
|
|
|
158546 |
+; CHECK-FP: la %r1, 0(%r1,%r11)
|
|
|
158546 |
; CHECK-FP: mvi 0(%r1), 42
|
|
|
158546 |
; CHECK-FP: br %r14
|
|
|
158546 |
%region1 = alloca [524104 x i8], align 8
|
|
|
158546 |
@@ -108,13 +108,13 @@ define void @f4() {
|
|
|
158546 |
define void @f5() {
|
|
|
158546 |
; CHECK-NOFP-LABEL: f5:
|
|
|
158546 |
; CHECK-NOFP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-NOFP: agr %r1, %r15
|
|
|
158546 |
+; CHECK-NOFP: la %r1, 0(%r1,%r15)
|
|
|
158546 |
; CHECK-NOFP: mvi 4095(%r1), 42
|
|
|
158546 |
; CHECK-NOFP: br %r14
|
|
|
158546 |
;
|
|
|
158546 |
; CHECK-FP-LABEL: f5:
|
|
|
158546 |
; CHECK-FP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-FP: agr %r1, %r11
|
|
|
158546 |
+; CHECK-FP: la %r1, 0(%r1,%r11)
|
|
|
158546 |
; CHECK-FP: mvi 4095(%r1), 42
|
|
|
158546 |
; CHECK-FP: br %r14
|
|
|
158546 |
%region1 = alloca [524104 x i8], align 8
|
|
|
158546 |
@@ -130,13 +130,13 @@ define void @f5() {
|
|
|
158546 |
define void @f6() {
|
|
|
158546 |
; CHECK-NOFP-LABEL: f6:
|
|
|
158546 |
; CHECK-NOFP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-NOFP: agr %r1, %r15
|
|
|
158546 |
+; CHECK-NOFP: la %r1, 0(%r1,%r15)
|
|
|
158546 |
; CHECK-NOFP: mviy 4096(%r1), 42
|
|
|
158546 |
; CHECK-NOFP: br %r14
|
|
|
158546 |
;
|
|
|
158546 |
; CHECK-FP-LABEL: f6:
|
|
|
158546 |
; CHECK-FP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-FP: agr %r1, %r11
|
|
|
158546 |
+; CHECK-FP: la %r1, 0(%r1,%r11)
|
|
|
158546 |
; CHECK-FP: mviy 4096(%r1), 42
|
|
|
158546 |
; CHECK-FP: br %r14
|
|
|
158546 |
%region1 = alloca [524104 x i8], align 8
|
|
|
158546 |
@@ -155,13 +155,13 @@ define void @f6() {
|
|
|
158546 |
define void @f7() {
|
|
|
158546 |
; CHECK-NOFP-LABEL: f7:
|
|
|
158546 |
; CHECK-NOFP: llilh %r1, 23
|
|
|
158546 |
-; CHECK-NOFP: agr %r1, %r15
|
|
|
158546 |
+; CHECK-NOFP: la %r1, 0(%r1,%r15)
|
|
|
158546 |
; CHECK-NOFP: mviy 65535(%r1), 42
|
|
|
158546 |
; CHECK-NOFP: br %r14
|
|
|
158546 |
;
|
|
|
158546 |
; CHECK-FP-LABEL: f7:
|
|
|
158546 |
; CHECK-FP: llilh %r1, 23
|
|
|
158546 |
-; CHECK-FP: agr %r1, %r11
|
|
|
158546 |
+; CHECK-FP: la %r1, 0(%r1,%r11)
|
|
|
158546 |
; CHECK-FP: mviy 65535(%r1), 42
|
|
|
158546 |
; CHECK-FP: br %r14
|
|
|
158546 |
%region1 = alloca [1048400 x i8], align 8
|
|
|
158546 |
@@ -178,13 +178,13 @@ define void @f7() {
|
|
|
158546 |
define void @f8() {
|
|
|
158546 |
; CHECK-NOFP-LABEL: f8:
|
|
|
158546 |
; CHECK-NOFP: llilh %r1, 24
|
|
|
158546 |
-; CHECK-NOFP: agr %r1, %r15
|
|
|
158546 |
+; CHECK-NOFP: la %r1, 0(%r1,%r15)
|
|
|
158546 |
; CHECK-NOFP: mvi 7(%r1), 42
|
|
|
158546 |
; CHECK-NOFP: br %r14
|
|
|
158546 |
;
|
|
|
158546 |
; CHECK-FP-LABEL: f8:
|
|
|
158546 |
; CHECK-FP: llilh %r1, 24
|
|
|
158546 |
-; CHECK-FP: agr %r1, %r11
|
|
|
158546 |
+; CHECK-FP: la %r1, 0(%r1,%r11)
|
|
|
158546 |
; CHECK-FP: mvi 7(%r1), 42
|
|
|
158546 |
; CHECK-FP: br %r14
|
|
|
158546 |
%region1 = alloca [1048408 x i8], align 8
|
|
|
158546 |
@@ -233,7 +233,7 @@ define void @f10(i32 *%vptr) {
|
|
|
158546 |
; CHECK-NOFP-LABEL: f10:
|
|
|
158546 |
; CHECK-NOFP: stg [[REGISTER:%r[1-9][0-4]?]], [[OFFSET:160|168]](%r15)
|
|
|
158546 |
; CHECK-NOFP: llilh [[REGISTER]], 8
|
|
|
158546 |
-; CHECK-NOFP: agr [[REGISTER]], %r15
|
|
|
158546 |
+; CHECK-NOFP: la [[REGISTER]], 0([[REGISTER]],%r15)
|
|
|
158546 |
; CHECK-NOFP: mvi 0([[REGISTER]]), 42
|
|
|
158546 |
; CHECK-NOFP: lg [[REGISTER]], [[OFFSET]](%r15)
|
|
|
158546 |
; CHECK-NOFP: br %r14
|
|
|
158546 |
@@ -241,7 +241,7 @@ define void @f10(i32 *%vptr) {
|
|
|
158546 |
; CHECK-FP-LABEL: f10:
|
|
|
158546 |
; CHECK-FP: stg [[REGISTER:%r[1-9][0-4]?]], [[OFFSET:160|168]](%r11)
|
|
|
158546 |
; CHECK-FP: llilh [[REGISTER]], 8
|
|
|
158546 |
-; CHECK-FP: agr [[REGISTER]], %r11
|
|
|
158546 |
+; CHECK-FP: la [[REGISTER]], 0([[REGISTER]],%r11)
|
|
|
158546 |
; CHECK-FP: mvi 0([[REGISTER]]), 42
|
|
|
158546 |
; CHECK-FP: lg [[REGISTER]], [[OFFSET]](%r11)
|
|
|
158546 |
; CHECK-FP: br %r14
|
|
|
158546 |
@@ -273,7 +273,7 @@ define void @f11(i32 *%vptr) {
|
|
|
158546 |
; CHECK-NOFP: stmg %r6, %r15,
|
|
|
158546 |
; CHECK-NOFP: stg [[REGISTER:%r[1-9][0-4]?]], [[OFFSET:160|168]](%r15)
|
|
|
158546 |
; CHECK-NOFP: llilh [[REGISTER]], 8
|
|
|
158546 |
-; CHECK-NOFP: agr [[REGISTER]], %r15
|
|
|
158546 |
+; CHECK-NOFP: la [[REGISTER]], 0([[REGISTER]],%r15)
|
|
|
158546 |
; CHECK-NOFP: mvi 0([[REGISTER]]), 42
|
|
|
158546 |
; CHECK-NOFP: lg [[REGISTER]], [[OFFSET]](%r15)
|
|
|
158546 |
; CHECK-NOFP: lmg %r6, %r15,
|
|
|
158546 |
diff --git a/llvm/test/CodeGen/SystemZ/frame-16.ll b/llvm/test/CodeGen/SystemZ/frame-16.ll
|
|
|
158546 |
index ae8a041ae110..a95c58207afb 100644
|
|
|
158546 |
--- a/llvm/test/CodeGen/SystemZ/frame-16.ll
|
|
|
158546 |
+++ b/llvm/test/CodeGen/SystemZ/frame-16.ll
|
|
|
158546 |
@@ -311,13 +311,13 @@ define void @f11(i32 *%vptr, i8 %byte) {
|
|
|
158546 |
define void @f12(i8 %byte, i64 %index) {
|
|
|
158546 |
; CHECK-NOFP-LABEL: f12:
|
|
|
158546 |
; CHECK-NOFP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-NOFP: agr %r1, %r15
|
|
|
158546 |
+; CHECK-NOFP: la %r1, 0(%r1,%r15)
|
|
|
158546 |
; CHECK-NOFP: stc %r2, 0(%r3,%r1)
|
|
|
158546 |
; CHECK-NOFP: br %r14
|
|
|
158546 |
;
|
|
|
158546 |
; CHECK-FP-LABEL: f12:
|
|
|
158546 |
; CHECK-FP: llilh %r1, 8
|
|
|
158546 |
-; CHECK-FP: agr %r1, %r11
|
|
|
158546 |
+; CHECK-FP: la %r1, 0(%r1,%r11)
|
|
|
158546 |
; CHECK-FP: stc %r2, 0(%r3,%r1)
|
|
|
158546 |
; CHECK-FP: br %r14
|
|
|
158546 |
%region1 = alloca [524104 x i8], align 8
|
|
|
158546 |
--
|
|
|
158546 |
2.26.2
|
|
|
158546 |
|