[llvm] r337385 - ARM: switch armv7em triple to hard-float defaults and libcalls.
Tim Northover via llvm-commits
llvm-commits at lists.llvm.org
Wed Jul 18 05:37:05 PDT 2018
Author: tnorthover
Date: Wed Jul 18 05:37:04 2018
New Revision: 337385
URL: http://llvm.org/viewvc/llvm-project?rev=337385&view=rev
Log:
ARM: switch armv7em triple to hard-float defaults and libcalls.
We were emitting incorrect calls to libm functions that LLVM had decided it
knew about because the default is soft-float.
Added:
llvm/trunk/test/CodeGen/ARM/macho-embedded-float.ll
Modified:
llvm/trunk/lib/Target/ARM/ARMTargetMachine.h
llvm/trunk/test/CodeGen/ARM/darwin-eabi.ll
Modified: llvm/trunk/lib/Target/ARM/ARMTargetMachine.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMTargetMachine.h?rev=337385&r1=337384&r2=337385&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMTargetMachine.h (original)
+++ llvm/trunk/lib/Target/ARM/ARMTargetMachine.h Wed Jul 18 05:37:04 2018
@@ -66,6 +66,7 @@ public:
return TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
TargetTriple.getEnvironment() == Triple::EABIHF ||
+ TargetTriple.getSubArch() == Triple::ARMSubArch_v7em ||
TargetTriple.isOSWindows() ||
TargetABI == ARMBaseTargetMachine::ARM_ABI_AAPCS16;
}
Modified: llvm/trunk/test/CodeGen/ARM/darwin-eabi.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/darwin-eabi.ll?rev=337385&r1=337384&r2=337385&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/darwin-eabi.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/darwin-eabi.ll Wed Jul 18 05:37:04 2018
@@ -20,5 +20,5 @@ define double @double_op(double %lhs, do
; CHECK-M3: bl ___adddf3
; CHECK-M4-LABEL: double_op:
-; CHECK-M4: {{(blx|b.w)}} ___adddf3
+; CHECK-M4: {{(bl|blx|b.w)}} ___adddf3
}
Added: llvm/trunk/test/CodeGen/ARM/macho-embedded-float.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/macho-embedded-float.ll?rev=337385&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/macho-embedded-float.ll (added)
+++ llvm/trunk/test/CodeGen/ARM/macho-embedded-float.ll Wed Jul 18 05:37:04 2018
@@ -0,0 +1,36 @@
+; RUN: llc -mtriple=thumbv7em-none-macho %s -o - -mcpu=cortex-m4 | FileCheck --check-prefix=CHECK-HARD %s
+; RUN: llc -mtriple=thumbv7m-none-macho %s -o - -mcpu=cortex-m4 | FileCheck --check-prefix=CHECK-SOFT %s
+
+define float @test_default_cc(float %a, float %b) {
+; CHECK-HARD-LABEL: test_default_cc:
+; CHECK-HARD-NOT: vmov
+; CHECK-HARD: vadd.f32 s0, s0, s1
+; CHECK-HARD-NOT: vmov
+
+; CHECK-SOFT-LABEL: test_default_cc:
+; CHECK-SOFT-DAG: vmov [[A:s[0-9]+]], r0
+; CHECK-SOFT-DAG: vmov [[B:s[0-9]+]], r1
+; CHECK-SOFT: vadd.f32 [[RES:s[0-9]+]], [[A]], [[B]]
+; CEHCK-SOFT: vmov r0, [[RES]]
+
+ %res = fadd float %a, %b
+ ret float %res
+}
+
+
+define arm_aapcs_vfpcc float @test_libcall(float %in) {
+; CHECK-HARD-LABEL: test_libcall:
+; CHECK-HARD-NOT: vmov
+; CHECK-HARD: b.w _sinf
+
+; CHECK-SOFT-LABEL: test_libcall:
+; CHECK-SOFT: vmov r0, s0
+; CHECK-SOFT: bl _sinf
+; CHECK-SOFT: vmov s0, r0
+
+ %res = call float @llvm.sin.f32(float %in)
+ ret float %res
+}
+
+
+declare float @llvm.sin.f32(float)
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