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1e8839302b
This implements the review suggestion to simplify the AArch64 backend. If we later discover that we *really* need the extra complexity of the ConstantIslands pass for performance reasons it can be resurrected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175258 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
836 B
LLVM
27 lines
836 B
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
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@varfloat = global float 0.0
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@vardouble = global double 0.0
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define void @test_csel(i32 %lhs32, i32 %rhs32, i64 %lhs64) {
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; CHECK: test_csel:
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%tst1 = icmp ugt i32 %lhs32, %rhs32
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%val1 = select i1 %tst1, float 0.0, float 1.0
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store float %val1, float* @varfloat
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; CHECK: ldr [[FLT0:s[0-9]+]], [{{x[0-9]+}}, #:lo12:.LCPI
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; CHECK: fmov [[FLT1:s[0-9]+]], #1.0
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; CHECK: fcsel {{s[0-9]+}}, [[FLT0]], [[FLT1]], hi
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%rhs64 = sext i32 %rhs32 to i64
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%tst2 = icmp sle i64 %lhs64, %rhs64
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%val2 = select i1 %tst2, double 1.0, double 0.0
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store double %val2, double* @vardouble
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; CHECK: ldr [[FLT0:d[0-9]+]], [{{x[0-9]+}}, #:lo12:.LCPI
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; CHECK: fmov [[FLT1:d[0-9]+]], #1.0
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; CHECK: fcsel {{d[0-9]+}}, [[FLT1]], [[FLT0]], le
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ret void
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; CHECK: ret
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}
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