[llvm] 430de48 - [GISel] Simplify getConstantVRegValWithLookThrough. NFC.
Jay Foad via llvm-commits
llvm-commits at lists.llvm.org
Fri Mar 8 04:36:22 PST 2024
Author: Jay Foad
Date: 2024-03-08T12:26:43Z
New Revision: 430de48a61369ea41efe1cbb98654a86568ae95f
URL: https://github.com/llvm/llvm-project/commit/430de48a61369ea41efe1cbb98654a86568ae95f
DIFF: https://github.com/llvm/llvm-project/commit/430de48a61369ea41efe1cbb98654a86568ae95f.diff
LOG: [GISel] Simplify getConstantVRegValWithLookThrough. NFC.
Added:
Modified:
llvm/lib/CodeGen/GlobalISel/Utils.cpp
Removed:
################################################################################
diff --git a/llvm/lib/CodeGen/GlobalISel/Utils.cpp b/llvm/lib/CodeGen/GlobalISel/Utils.cpp
index 23ad68b331c977..a9fa73b60a097f 100644
--- a/llvm/lib/CodeGen/GlobalISel/Utils.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/Utils.cpp
@@ -355,18 +355,17 @@ std::optional<ValueAndVReg> getConstantVRegValWithLookThrough(
if (!MaybeVal)
return std::nullopt;
APInt &Val = *MaybeVal;
- while (!SeenOpcodes.empty()) {
- std::pair<unsigned, unsigned> OpcodeAndSize = SeenOpcodes.pop_back_val();
- switch (OpcodeAndSize.first) {
+ for (auto [Opcode, Size] : reverse(SeenOpcodes)) {
+ switch (Opcode) {
case TargetOpcode::G_TRUNC:
- Val = Val.trunc(OpcodeAndSize.second);
+ Val = Val.trunc(Size);
break;
case TargetOpcode::G_ANYEXT:
case TargetOpcode::G_SEXT:
- Val = Val.sext(OpcodeAndSize.second);
+ Val = Val.sext(Size);
break;
case TargetOpcode::G_ZEXT:
- Val = Val.zext(OpcodeAndSize.second);
+ Val = Val.zext(Size);
break;
}
}
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