The inline asm operand modifier 'n' is suppose
to be generic across architectures. It has the
following description in the gnu sources:
Negate the immediate constant
Several Architectures such as x86 have local implementations
of operand modifier 'n' which go beyond the above description
slightly. This won't affect them.
Affected files:
lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp
Added 'n' to the switch cases.
test/CodeGen/Generic/asm-large-immediate.ll
Generic compiled test (x86 for me)
test/CodeGen/Mips/asm-large-immediate.ll
Mips compiled version of the generic one
Contributer: Jack Carter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158939 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/Generic/asm-large-immediate.ll b/test/CodeGen/Generic/asm-large-immediate.ll
index 605665b..d5d5eb6 100644
--- a/test/CodeGen/Generic/asm-large-immediate.ll
+++ b/test/CodeGen/Generic/asm-large-immediate.ll
@@ -1,8 +1,11 @@
-; RUN: llc < %s | grep 68719476738
+; RUN: llc < %s | FileCheck %s
define void @test() {
entry:
+; CHECK: /* result: 68719476738 */
tail call void asm sideeffect "/* result: ${0:c} */", "i,~{dirflag},~{fpsr},~{flags}"( i64 68719476738 )
+; CHECK: /* result: -68719476738 */
+ tail call void asm sideeffect "/* result: ${0:n} */", "i,~{dirflag},~{fpsr},~{flags}"( i64 68719476738 )
ret void
}
diff --git a/test/CodeGen/Mips/asm-large-immediate.ll b/test/CodeGen/Mips/asm-large-immediate.ll
index d9bb0ca..246fff6 100644
--- a/test/CodeGen/Mips/asm-large-immediate.ll
+++ b/test/CodeGen/Mips/asm-large-immediate.ll
@@ -1,10 +1,10 @@
-; RUNx: llc -march=mipsel < %s | grep 68719476738
-
; RUN: llc -march=mipsel < %s | FileCheck %s
define void @test() {
entry:
; CHECK: /* result: 68719476738 */
tail call void asm sideeffect "/* result: ${0:c} */", "i,~{dirflag},~{fpsr},~{flags}"( i64 68719476738 )
+; CHECK: /* result: -68719476738 */
+ tail call void asm sideeffect "/* result: ${0:n} */", "i,~{dirflag},~{fpsr},~{flags}"( i64 68719476738 )
ret void
}