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| author | Tim Northover <tnorthover@apple.com> | 2014-07-29 09:56:38 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-07-29 09:56:38 +0000 |
| commit | f67bb2079d8bc4e98c436cee5e4e55050e263c03 (patch) | |
| tree | 4a9ee886eaad19f082c2c32161e27031d62e1e2a /llvm/test/CodeGen/ARM/fp16.ll | |
| parent | 48df870d11cf5c96553ce5bb31a28d73d393f0c3 (diff) | |
| download | bcm5719-llvm-f67bb2079d8bc4e98c436cee5e4e55050e263c03.tar.gz bcm5719-llvm-f67bb2079d8bc4e98c436cee5e4e55050e263c03.zip | |
ARM: fix @llvm.convert.from.fp16 on softfloat targets.
We need to make sure we use the softened version of all appropriate operands in
the libcall, or things go horribly wrong. This may entail actually executing a
1-stage softening.
llvm-svn: 214175
Diffstat (limited to 'llvm/test/CodeGen/ARM/fp16.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/fp16.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/fp16.ll b/llvm/test/CodeGen/ARM/fp16.ll index d3f32556a09..501c2ba40ff 100644 --- a/llvm/test/CodeGen/ARM/fp16.ll +++ b/llvm/test/CodeGen/ARM/fp16.ll @@ -1,6 +1,8 @@ ; RUN: llc < %s | FileCheck %s ; RUN: llc -mattr=+vfp3,+fp16 < %s | FileCheck --check-prefix=CHECK-FP16 %s ; RUN: llc -mtriple=armv8-eabi < %s | FileCheck --check-prefix=CHECK-ARMV8 %s +; RUN: llc -mtriple=thumbv7m-eabi < %s | FileCheck --check-prefix=CHECK-SOFTFLOAT %s + target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32" target triple = "armv7-eabi" @@ -12,6 +14,7 @@ define arm_aapcs_vfpcc void @foo() nounwind { ; CHECK-LABEL: foo: ; CHECK-FP16-LABEL: foo: ; CHECK-ARMV8-LABEL: foo: +; CHECK-SOFTFLOAT-LABEL: foo: entry: %0 = load i16* @x, align 2 %1 = load i16* @y, align 2 @@ -19,15 +22,18 @@ entry: ; CHECK: __gnu_h2f_ieee ; CHECK-FP16: vcvtb.f32.f16 ; CHECK-ARMv8: vcvtb.f32.f16 +; CHECK-SOFTFLOAT: __gnu_h2f_ieee %3 = tail call float @llvm.convert.from.fp16.f32(i16 %1) ; CHECK: __gnu_h2f_ieee ; CHECK-FP16: vcvtb.f32.f16 ; CHECK-ARMV8: vcvtb.f32.f16 +; CHECK-SOFTFLOAT: __gnu_h2f_ieee %4 = fadd float %2, %3 %5 = tail call i16 @llvm.convert.to.fp16.f32(float %4) ; CHECK: __gnu_f2h_ieee ; CHECK-FP16: vcvtb.f16.f32 ; CHECK-ARMV8: vcvtb.f16.f32 +; CHECK-SOFTFLOAT: __gnu_f2h_ieee store i16 %5, i16* @x, align 2 ret void } @@ -36,6 +42,7 @@ define arm_aapcs_vfpcc double @test_from_fp16(i16 %in) { ; CHECK-LABEL: test_from_fp16: ; CHECK-FP-LABEL: test_from_fp16: ; CHECK-ARMV8-LABEL: test_from_fp16: +; CHECK-SOFTFLOAT-LABEL: test_from_fp16: %val = call double @llvm.convert.from.fp16.f64(i16 %in) ; CHECK: bl __gnu_h2f_ieee ; CHECK: vmov [[TMP:s[0-9]+]], r0 @@ -47,6 +54,9 @@ define arm_aapcs_vfpcc double @test_from_fp16(i16 %in) { ; CHECK-ARMV8: vmov [[TMP:s[0-9]+]], r0 ; CHECK-ARMV8: vcvtb.f64.f16 d0, [[TMP]] + +; CHECK-SOFTFLOAT: bl __gnu_h2f_ieee +; CHECK-SOFTFLOAT: bl __aeabi_f2d ret double %val } @@ -54,6 +64,7 @@ define arm_aapcs_vfpcc i16 @test_to_fp16(double %in) { ; CHECK-LABEL: test_to_fp16: ; CHECK-FP-LABEL: test_to_fp16: ; CHECK-ARMV8-LABEL: test_to_fp16: +; CHECK-SOFTFLOAT-LABEL: test_to_fp16: %val = call i16 @llvm.convert.to.fp16.f64(double %in) ; CHECK: bl __truncdfhf2 @@ -61,6 +72,8 @@ define arm_aapcs_vfpcc i16 @test_to_fp16(double %in) { ; CHECK-ARMV8: vcvtb.f16.f64 [[TMP:s[0-9]+]], d0 ; CHECK-ARMV8: vmov r0, [[TMP]] + +; CHECK-SOFTFLOAT: bl __truncdfhf2 ret i16 %val } |
