[llvm] 8387bee - [llvm] [X86] Fixed type bug in vselect for AVX masked load
via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 21 11:11:45 PDT 2020
Author: aartbik
Date: 2020-04-21T11:11:35-07:00
New Revision: 8387bee94d6e7e7ad6f07be18bb09488978e7fb0
URL: https://github.com/llvm/llvm-project/commit/8387bee94d6e7e7ad6f07be18bb09488978e7fb0
DIFF: https://github.com/llvm/llvm-project/commit/8387bee94d6e7e7ad6f07be18bb09488978e7fb0.diff
LOG: [llvm] [X86] Fixed type bug in vselect for AVX masked load
Summary:
Bugzilla issue 45563
https://bugs.llvm.org/show_bug.cgi?id=45563
Reviewers: nicolasvasilache, mehdi_amini, craig.topper
Reviewed By: craig.topper
Subscribers: RKSimon, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D78527
Added:
llvm/test/CodeGen/X86/pr45563.ll
Modified:
llvm/lib/Target/X86/X86ISelLowering.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 8457bce9a04b..13c54c5f13db 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -28772,8 +28772,7 @@ static SDValue LowerMLOAD(SDValue Op, const X86Subtarget &Subtarget,
N->getMemOperand(), N->getAddressingMode(), N->getExtensionType(),
N->isExpandingLoad());
// Emit a blend.
- SDValue Select = DAG.getNode(ISD::VSELECT, dl, MaskVT, Mask, NewLoad,
- PassThru);
+ SDValue Select = DAG.getNode(ISD::VSELECT, dl, VT, Mask, NewLoad, PassThru);
return DAG.getMergeValues({ Select, NewLoad.getValue(1) }, dl);
}
@@ -28809,10 +28808,10 @@ static SDValue LowerMLOAD(SDValue Op, const X86Subtarget &Subtarget,
PassThru, N->getMemoryVT(), N->getMemOperand(), N->getAddressingMode(),
N->getExtensionType(), N->isExpandingLoad());
- SDValue Exract = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, VT,
- NewLoad.getValue(0),
- DAG.getIntPtrConstant(0, dl));
- SDValue RetOps[] = {Exract, NewLoad.getValue(1)};
+ SDValue Extract =
+ DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, VT, NewLoad.getValue(0),
+ DAG.getIntPtrConstant(0, dl));
+ SDValue RetOps[] = {Extract, NewLoad.getValue(1)};
return DAG.getMergeValues(RetOps, dl);
}
diff --git a/llvm/test/CodeGen/X86/pr45563.ll b/llvm/test/CodeGen/X86/pr45563.ll
new file mode 100644
index 000000000000..3fbd991729d5
--- /dev/null
+++ b/llvm/test/CodeGen/X86/pr45563.ll
@@ -0,0 +1,21 @@
+; RUN: llc < %s -debug-only=isel -O3 -mattr=avx 2>&1 | FileCheck %s
+
+; Bug 45563:
+; The LowerMLOAD() method AVX masked load branch should
+; use the operand vector type rather than the mask type.
+; Given, for example:
+; v4f64,ch = masked_load ..
+; The select should be:
+; v4f64 = vselect ..
+; instead of:
+; v4i64 = vselect ..
+
+define <16 x double> @bug45563(<16 x double>* %addr, <16 x double> %dst, <16 x i64> %e, <16 x i64> %f) {
+; CHECK-LABEL: bug45563:
+; CHECK: v4f64 = vselect
+ %mask = icmp slt <16 x i64> %e, %f
+ %res = call <16 x double> @llvm.masked.load.v16f64.p0v16f64(<16 x double>* %addr, i32 4, <16 x i1>%mask, <16 x double> %dst)
+ ret <16 x double> %res
+}
+
+declare <16 x double> @llvm.masked.load.v16f64.p0v16f64(<16 x double>* %addr, i32 %align, <16 x i1> %mask, <16 x double> %dst)
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