[llvm] 803af31 - [WebAssembly] Support fp reg class in r constraint
Heejin Ahn via llvm-commits
llvm-commits at lists.llvm.org
Wed Nov 18 17:06:44 PST 2020
Author: snek
Date: 2020-11-18T17:05:58-08:00
New Revision: 803af31e5b29d53cbf09def55cf221401c108744
URL: https://github.com/llvm/llvm-project/commit/803af31e5b29d53cbf09def55cf221401c108744
DIFF: https://github.com/llvm/llvm-project/commit/803af31e5b29d53cbf09def55cf221401c108744.diff
LOG: [WebAssembly] Support fp reg class in r constraint
Patch by snek
Reviewed By: aheejin
Differential Revision: https://reviews.llvm.org/D90978
Added:
Modified:
llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
llvm/test/CodeGen/WebAssembly/inline-asm.ll
Removed:
################################################################################
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
index 57134999d14c..20b3e2e07e77 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
@@ -563,6 +563,16 @@ WebAssemblyTargetLowering::getRegForInlineAsmConstraint(
if (VT.getSizeInBits() <= 64)
return std::make_pair(0U, &WebAssembly::I64RegClass);
}
+ if (VT.isFloatingPoint() && !VT.isVector()) {
+ switch (VT.getSizeInBits()) {
+ case 32:
+ return std::make_pair(0U, &WebAssembly::F32RegClass);
+ case 64:
+ return std::make_pair(0U, &WebAssembly::F64RegClass);
+ default:
+ break;
+ }
+ }
break;
default:
break;
diff --git a/llvm/test/CodeGen/WebAssembly/inline-asm.ll b/llvm/test/CodeGen/WebAssembly/inline-asm.ll
index 95c10a68b9c2..aa8eb45d46f5 100644
--- a/llvm/test/CodeGen/WebAssembly/inline-asm.ll
+++ b/llvm/test/CodeGen/WebAssembly/inline-asm.ll
@@ -46,6 +46,32 @@ entry:
ret i64 %0
}
+; CHECK-LABEL: foo_float:
+; CHECK-NEXT: .functype foo_float (f32) -> (f32){{$}}
+; CHECK-NEXT: #APP{{$}}
+; CHECK-NEXT: # 0 = aaa(0){{$}}
+; CHECK-NEXT: #NO_APP{{$}}
+; CHECK-NEXT: local.get $push0=, 0{{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define float @foo_float(float %r) {
+entry:
+ %0 = tail call float asm sideeffect "# $0 = aaa($1)", "=r,r"(float %r) #0, !srcloc !0
+ ret float %0
+}
+
+; CHECK-LABEL: foo_double:
+; CHECK-NEXT: .functype foo_double (f64) -> (f64){{$}}
+; CHECK-NEXT: #APP{{$}}
+; CHECK-NEXT: # 0 = aaa(0){{$}}
+; CHECK-NEXT: #NO_APP{{$}}
+; CHECK-NEXT: local.get $push0=, 0{{$}}
+; CHECK-NEXT: return $pop0{{$}}
+define double @foo_double(double %r) {
+entry:
+ %0 = tail call double asm sideeffect "# $0 = aaa($1)", "=r,r"(double %r) #0, !srcloc !0
+ ret double %0
+}
+
; CHECK-LABEL: X_i16:
; CHECK: foo 1{{$}}
; CHECK: local.get $push[[S0:[0-9]+]]=, 0{{$}}
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