https://github.com/aqjune updated
https://github.com/llvm/llvm-project/pull/77281
>From 1bbfe05bc50e1fbdb207f21a178b6fc7ab24e8cf Mon Sep 17 00:00:00 2001
From: Juneyoung Lee <aqj...@gmail.com>
Date: Mon, 8 Jan 2024 02:01:41 -0600
Subject: [PATCH] [WebAssembly] Correctly consider signext/zext arg flags at
function declaration
---
.../WebAssembly/WebAssemblyFastISel.cpp | 6 +-
.../WebAssembly/signext-zeroext-callsite.ll | 125 ++++++++++++++++++
2 files changed, 129 insertions(+), 2 deletions(-)
create mode 100644 llvm/test/CodeGen/WebAssembly/signext-zeroext-callsite.ll
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
index 15dc44a0439573..80159974ecd691 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
@@ -839,9 +839,11 @@ bool WebAssemblyFastISel::selectCall(const Instruction *I)
{
unsigned Reg;
- if (Attrs.hasParamAttr(I, Attribute::SExt))
+ if (Attrs.hasParamAttr(I, Attribute::SExt) ||
+ (IsDirect && Func->hasParamAttribute(I, Attribute::SExt)))
Reg = getRegForSignedValue(V);
- else if (Attrs.hasParamAttr(I, Attribute::ZExt))
+ else if (Attrs.hasParamAttr(I, Attribute::ZExt) ||
+ (IsDirect && Func->hasParamAttribute(I, Attribute::ZExt)))
Reg = getRegForUnsignedValue(V);
else
Reg = getRegForValue(V);
diff --git a/llvm/test/CodeGen/WebAssembly/signext-zeroext-callsite.ll
b/llvm/test/CodeGen/WebAssembly/signext-zeroext-callsite.ll
new file mode 100644
index 00000000000000..02ca578716dc98
--- /dev/null
+++ b/llvm/test/CodeGen/WebAssembly/signext-zeroext-callsite.ll
@@ -0,0 +1,125 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -O0 | FileCheck %s
+
+target triple = "wasm32-unknown-unknown"
+
+
+declare i32 @foo(i1 signext noundef, i32 noundef)
+
+; callsite_signext and callsite_nosignext must emit equivalent codes
+
+define i32 @callsite_nosignext() {
+; CHECK-LABEL: callsite_nosignext:
+; CHECK: .functype callsite_nosignext () -> (i32)
+; CHECK-NEXT: .local i32, i32, i32, i32, i32, i32
+; CHECK-NEXT: # %bb.0: # %start
+; CHECK-NEXT: i32.const 1
+; CHECK-NEXT: local.set 0
+; CHECK-NEXT: i32.const 0
+; CHECK-NEXT: local.set 1
+; CHECK-NEXT: i32.const 31
+; CHECK-NEXT: local.set 2
+; CHECK-NEXT: local.get 0
+; CHECK-NEXT: local.get 2
+; CHECK-NEXT: i32.shl
+; CHECK-NEXT: local.set 3
+; CHECK-NEXT: local.get 3
+; CHECK-NEXT: local.get 2
+; CHECK-NEXT: i32.shr_s
+; CHECK-NEXT: local.set 4
+; CHECK-NEXT: local.get 4
+; CHECK-NEXT: local.get 1
+; CHECK-NEXT: call foo
+; CHECK-NEXT: local.set 5
+; CHECK-NEXT: local.get 5
+; CHECK-NEXT: return
+start:
+ %0 = call i32 @foo(i1 1, i32 0)
+ ret i32 %0
+}
+
+define i32 @callsite_signext() {
+; CHECK-LABEL: callsite_signext:
+; CHECK: .functype callsite_signext () -> (i32)
+; CHECK-NEXT: .local i32, i32, i32, i32, i32, i32
+; CHECK-NEXT: # %bb.0: # %start
+; CHECK-NEXT: i32.const 1
+; CHECK-NEXT: local.set 0
+; CHECK-NEXT: i32.const 0
+; CHECK-NEXT: local.set 1
+; CHECK-NEXT: i32.const 31
+; CHECK-NEXT: local.set 2
+; CHECK-NEXT: local.get 0
+; CHECK-NEXT: local.get 2
+; CHECK-NEXT: i32.shl
+; CHECK-NEXT: local.set 3
+; CHECK-NEXT: local.get 3
+; CHECK-NEXT: local.get 2
+; CHECK-NEXT: i32.shr_s
+; CHECK-NEXT: local.set 4
+; CHECK-NEXT: local.get 4
+; CHECK-NEXT: local.get 1
+; CHECK-NEXT: call foo
+; CHECK-NEXT: local.set 5
+; CHECK-NEXT: local.get 5
+; CHECK-NEXT: return
+start:
+ %0 = call i32 @foo(i1 signext 1, i32 0)
+ ret i32 %0
+}
+
+declare i32 @foo2(i1 zeroext noundef, i32 noundef)
+
+; callsite_zeroext and callsite_nozeroext must emit equivalent codes
+
+define i32 @callsite_nozeroext() {
+; CHECK-LABEL: callsite_nozeroext:
+; CHECK: .functype callsite_nozeroext () -> (i32)
+; CHECK-NEXT: .local i32, i32, i32, i32, i32
+; CHECK-NEXT: # %bb.0: # %start
+; CHECK-NEXT: i32.const 1
+; CHECK-NEXT: local.set 0
+; CHECK-NEXT: i32.const 0
+; CHECK-NEXT: local.set 1
+; CHECK-NEXT: i32.const 1
+; CHECK-NEXT: local.set 2
+; CHECK-NEXT: local.get 0
+; CHECK-NEXT: local.get 2
+; CHECK-NEXT: i32.and
+; CHECK-NEXT: local.set 3
+; CHECK-NEXT: local.get 3
+; CHECK-NEXT: local.get 1
+; CHECK-NEXT: call foo2
+; CHECK-NEXT: local.set 4
+; CHECK-NEXT: local.get 4
+; CHECK-NEXT: return
+start:
+ %0 = call i32 @foo2(i1 1, i32 0)
+ ret i32 %0
+}
+
+define i32 @callsite_zeroext() {
+; CHECK-LABEL: callsite_zeroext:
+; CHECK: .functype callsite_zeroext () -> (i32)
+; CHECK-NEXT: .local i32, i32, i32, i32, i32
+; CHECK-NEXT: # %bb.0: # %start
+; CHECK-NEXT: i32.const 1
+; CHECK-NEXT: local.set 0
+; CHECK-NEXT: i32.const 0
+; CHECK-NEXT: local.set 1
+; CHECK-NEXT: i32.const 1
+; CHECK-NEXT: local.set 2
+; CHECK-NEXT: local.get 0
+; CHECK-NEXT: local.get 2
+; CHECK-NEXT: i32.and
+; CHECK-NEXT: local.set 3
+; CHECK-NEXT: local.get 3
+; CHECK-NEXT: local.get 1
+; CHECK-NEXT: call foo2
+; CHECK-NEXT: local.set 4
+; CHECK-NEXT: local.get 4
+; CHECK-NEXT: return
+start:
+ %0 = call i32 @foo2(i1 zeroext 1, i32 0)
+ ret i32 %0
+}
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