r310529 - [X86][Asm] Allow negative immediate to appear before bracketed expression
Coby Tayree via cfe-commits
cfe-commits at lists.llvm.org
Wed Aug 9 14:50:22 PDT 2017
Author: coby
Date: Wed Aug 9 14:50:22 2017
New Revision: 310529
URL: http://llvm.org/viewvc/llvm-project?rev=310529&view=rev
Log:
[X86][Asm] Allow negative immediate to appear before bracketed expression
Currently, only non-negative immediate is allowed prior to a brac expression (memory reference).
MASM / GAS does not have any problem cope with the left side of the real line, so we should be able to as well.
llvm: D36229
Differential Revision: https://reviews.llvm.org/D36230
Modified:
cfe/trunk/test/CodeGen/ms-inline-asm.c
Modified: cfe/trunk/test/CodeGen/ms-inline-asm.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/ms-inline-asm.c?rev=310529&r1=310528&r2=310529&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/ms-inline-asm.c (original)
+++ cfe/trunk/test/CodeGen/ms-inline-asm.c Wed Aug 9 14:50:22 2017
@@ -484,13 +484,13 @@ void t37() {
__asm mov eax, (4 + 4) * 16
// CHECK: mov eax, $$128
__asm mov eax, 4 + 8 * -16
-// CHECK: mov eax, $$4294967172
+// CHECK: mov eax, $$-124
__asm mov eax, 4 + 16 / -8
// CHECK: mov eax, $$2
__asm mov eax, (16 + 16) / -8
-// CHECK: mov eax, $$4294967292
+// CHECK: mov eax, $$-4
__asm mov eax, ~15
-// CHECK: mov eax, $$4294967280
+// CHECK: mov eax, $$-16
__asm mov eax, 6 ^ 3
// CHECK: mov eax, $$5
// CHECK: "~{eax},~{dirflag},~{fpsr},~{flags}"()
@@ -655,6 +655,12 @@ void t45() {
// CHECK: call void asm sideeffect inteldialect "mov dr0, eax\0A\09mov dr1, ebx\0A\09mov dr2, ebx\0A\09mov dr3, ecx\0A\09mov dr6, edx\0A\09mov dr7, ecx", "~{dr0},~{dr1},~{dr2},~{dr3},~{dr6},~{dr7},~{dirflag},~{fpsr},~{flags}"()
}
+void t46() {
+ // CHECK-LABEL: define void @t46
+ __asm add eax, -128[eax]
+ // CHECK: call void asm sideeffect inteldialect "add eax, $$-128[eax]", "~{eax},~{flags},~{dirflag},~{fpsr},~{flags}"()
+}
+
void dot_operator(){
// CHECK-LABEL: define void @dot_operator
__asm { mov eax, 3[ebx]A.b}
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