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a1d7f2fdc1
Those two subtarget features were awkward because their semantics are reversed: each one indicates the _lack_ of support for something in the architecture, rather than the presence. As a consequence, you don't get the behavior you want if you combine two sets of feature bits. Each SubtargetFeature for an FP architecture version now comes in four versions, one for each combination of those options. So you can still say (for example) '+vfp2' in a feature string and it will mean what it's always meant, but there's a new string '+vfp2d16sp' meaning the version without those extra options. A lot of this change is just mechanically replacing positive checks for the old features with negative checks for the new ones. But one more interesting change is that I've rearranged getFPUFeatures() so that the main FPU feature is appended to the output list *before* rather than after the features derived from the Restriction field, so that -fp64 and -d32 can override defaults added by the main feature. Reviewers: dmgreen, samparker, SjoerdMeijer Subscribers: srhines, javed.absar, eraman, kristof.beyls, hiraditya, zzheng, Petar.Avramovic, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D60691 llvm-svn: 361845
63 lines
1.6 KiB
LLVM
63 lines
1.6 KiB
LLVM
; RUN: llc -mtriple=thumbv7em-apple-macho -mcpu=cortex-m4 %s -o - -O0 | FileCheck %s
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; RUN: llc -mtriple=thumbv7em-apple-macho -mcpu=cortex-m4 %s -o - | FileCheck %s
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; Note: vldr and vstr really do have 64-bit variants even with -fp64
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define void @test_load_store(double* %addr) {
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; CHECK-LABEL: test_load_store:
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; CHECK: vldr [[TMP:d[0-9]+]], [r0]
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; CHECK: vstr [[TMP]], [r0]
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%val = load volatile double, double* %addr
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store volatile double %val, double* %addr
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ret void
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}
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define void @test_cmp(double %l, double %r, i1* %addr.dst) {
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; CHECK-LABEL: test_cmp:
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; CHECK: bl ___eqdf2
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%res = fcmp oeq double %l, %r
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store i1 %res, i1* %addr.dst
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ret void
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}
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define void @test_ext(float %in, double* %addr) {
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; CHECK-LABEL: test_ext:
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; CHECK: bl ___extendsfdf2
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%res = fpext float %in to double
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store double %res, double* %addr
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ret void
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}
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define void @test_trunc(double %in, float* %addr) {
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; CHECK-LABEL: test_trunc:
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; CHECK: bl ___truncdfsf2
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%res = fptrunc double %in to float
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store float %res, float* %addr
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ret void
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}
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define void @test_itofp(i32 %in, double* %addr) {
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; CHECK-LABEL: test_itofp:
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; CHECK: bl ___floatsidf
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%res = sitofp i32 %in to double
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store double %res, double* %addr
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; %res = fptoui double %tmp to i32
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ret void
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}
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define i32 @test_fptoi(double* %addr) {
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; CHECK-LABEL: test_fptoi:
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; CHECK: bl ___fixunsdfsi
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%val = load double, double* %addr
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%res = fptoui double %val to i32
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ret i32 %res
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}
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define void @test_binop(double* %addr) {
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; CHECK-LABEL: test_binop:
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; CHECK: bl ___adddf3
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%in = load double, double* %addr
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%res = fadd double %in, %in
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store double %res, double* %addr
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ret void
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}
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