AArch64: expand sincos operations, we don't support them.

Patch based on Mans Rullgard's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176688 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AArch64/AArch64ISelLowering.cpp b/lib/Target/AArch64/AArch64ISelLowering.cpp
index 34cc0e3b3b84385f2e565e254a9fb1905fa445a1..e9f449709c40aacc1daac813fb2590ca13c1ba38 100644 (file)
--- a/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -200,6 +200,8 @@ AArch64TargetLowering::AArch64TargetLowering(AArch64TargetMachine &TM)
   setOperationAction(ISD::FSIN, MVT::f32, Expand);
   setOperationAction(ISD::FSIN, MVT::f64, Expand);
 
+  setOperationAction(ISD::FSINCOS, MVT::f32, Expand);
+  setOperationAction(ISD::FSINCOS, MVT::f64, Expand);
 
   // Virtually no operation on f128 is legal, but LLVM can't expand them when
   // there's a valid register class, so we need custom operations in most cases.
@@ -217,6 +219,7 @@ AArch64TargetLowering::AArch64TargetLowering(AArch64TargetMachine &TM)
   setOperationAction(ISD::FREM,       MVT::f128, Expand);
   setOperationAction(ISD::FRINT,      MVT::f128, Expand);
   setOperationAction(ISD::FSIN,       MVT::f128, Expand);
+  setOperationAction(ISD::FSINCOS,    MVT::f128, Expand);
   setOperationAction(ISD::FSQRT,      MVT::f128, Expand);
   setOperationAction(ISD::FSUB,       MVT::f128, Custom);
   setOperationAction(ISD::FTRUNC,     MVT::f128, Expand);

diff --git a/test/CodeGen/AArch64/sincos-expansion.ll b/test/CodeGen/AArch64/sincos-expansion.ll
new file mode 100644 (file)
index 0000000..550bc8d
--- /dev/null
+++ b/test/CodeGen/AArch64/sincos-expansion.ll
@@ -0,0 +1,35 @@
+; RUN: llc -march=aarch64 -verify-machineinstrs < %s | FileCheck %s
+
+define float @test_sincos_f32(float %f) {
+  %sin = call float @sinf(float %f) readnone
+  %cos = call float @cosf(float %f) readnone
+; CHECK: bl cosf
+; CHECK: bl sinf
+  %val = fadd float %sin, %cos
+  ret float %val
+}
+
+define double @test_sincos_f64(double %f) {
+  %sin = call double @sin(double %f) readnone
+  %cos = call double @cos(double %f) readnone
+  %val = fadd double %sin, %cos
+; CHECK: bl cos
+; CHECK: bl sin
+  ret double %val
+}
+
+define fp128 @test_sincos_f128(fp128 %f) {
+  %sin = call fp128 @sinl(fp128 %f) readnone
+  %cos = call fp128 @cosl(fp128 %f) readnone
+  %val = fadd fp128 %sin, %cos
+; CHECK: bl cosl
+; CHECK: bl sinl
+  ret fp128 %val
+}
+
+declare float  @sinf(float) readonly
+declare double @sin(double) readonly
+declare fp128 @sinl(fp128) readonly
+declare float @cosf(float) readonly
+declare double @cos(double) readonly
+declare fp128 @cosl(fp128) readonly
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