6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-09 11:25:55 +00:00
Code Issues Projects Releases Wiki Activity

Allow an integer to be converted into an MMX type when it's used in an inline

Browse Source 
asm.
<rdar://problem/10106006>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151303 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2012-02-23 23:25:25 +00:00
parent 89c5d26758
commit 9e8ceb0bac
2 changed files with 20 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@@ -352,10 +352,13 @@ static void getCopyToParts(SelectionDAG &DAG, DebugLoc DL,
assert(NumParts == 1 && "Do not know what to promote to!"); assert(NumParts == 1 && "Do not know what to promote to!");
Val = DAG.getNode(ISD::FP_EXTEND, DL, PartVT, Val); Val = DAG.getNode(ISD::FP_EXTEND, DL, PartVT, Val);
} else { } else {
assert(PartVT.isInteger() && ValueVT.isInteger() && assert((PartVT.isInteger() || PartVT == MVT::x86mmx) &&
ValueVT.isInteger() &&
"Unknown mismatch!"); "Unknown mismatch!");
ValueVT = EVT::getIntegerVT(*DAG.getContext(), NumParts * PartBits); ValueVT = EVT::getIntegerVT(*DAG.getContext(), NumParts * PartBits);
Val = DAG.getNode(ExtendKind, DL, ValueVT, Val); Val = DAG.getNode(ExtendKind, DL, ValueVT, Val);
if (PartVT == MVT::x86mmx)
Val = DAG.getNode(ISD::BITCAST, DL, PartVT, Val);
} }
} else if (PartBits == ValueVT.getSizeInBits()) { } else if (PartBits == ValueVT.getSizeInBits()) {
// Different types of the same size. // Different types of the same size.
@@ -363,10 +366,13 @@ static void getCopyToParts(SelectionDAG &DAG, DebugLoc DL,
Val = DAG.getNode(ISD::BITCAST, DL, PartVT, Val); Val = DAG.getNode(ISD::BITCAST, DL, PartVT, Val);
} else if (NumParts * PartBits < ValueVT.getSizeInBits()) { } else if (NumParts * PartBits < ValueVT.getSizeInBits()) {
// If the parts cover less bits than value has, truncate the value. // If the parts cover less bits than value has, truncate the value.
assert(PartVT.isInteger() && ValueVT.isInteger() && assert((PartVT.isInteger() || PartVT == MVT::x86mmx) &&
ValueVT.isInteger() &&
"Unknown mismatch!"); "Unknown mismatch!");
ValueVT = EVT::getIntegerVT(*DAG.getContext(), NumParts * PartBits); ValueVT = EVT::getIntegerVT(*DAG.getContext(), NumParts * PartBits);
Val = DAG.getNode(ISD::TRUNCATE, DL, ValueVT, Val); Val = DAG.getNode(ISD::TRUNCATE, DL, ValueVT, Val);
if (PartVT == MVT::x86mmx)
Val = DAG.getNode(ISD::BITCAST, DL, PartVT, Val);
} }
// The value may have changed - recompute ValueVT. // The value may have changed - recompute ValueVT.

12
test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll Normal file
View File

@@ -0,0 +1,12 @@
; RUN: llc -mcpu=i686 -mattr=+mmx < %s | FileCheck %s
; <rdar://problem/10106006>
define void @func() nounwind ssp {
; CHECK: psrlw %mm0, %mm1
entry:
call void asm sideeffect "psrlw $0, %mm1", "y,~{dirflag},~{fpsr},~{flags}"(i32 8) nounwind
unreachable
bb367: ; preds = %entry
ret void
}