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82a5b35667
Summary: STRQro* instructions are slower than the alternative ADD/STRQui expanded instructions on Falkor, so avoid generating them unless we're optimizing for code size. Reviewers: t.p.northover, mcrosier Subscribers: aemerson, rengolin, javed.absar, kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D37020 llvm-svn: 311931
48 lines
1.8 KiB
LLVM
48 lines
1.8 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck --check-prefix=CHECK --check-prefix=CHECK-STRQRO %s
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; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -mcpu=falkor | FileCheck --check-prefix=CHECK --check-prefix=CHECK-NOSTRQRO %s
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; CHECK-LABEL: strqrox:
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; CHECK-STRQRO: str q{{[0-9]+}}, [x{{[0-9]+}}, x
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; CHECK-NOSTRQRO-NOT: str q{{[0-9]+}}, [x{{[0-9]+}}, x
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define void @strqrox(fp128 %val64, i64 %base, i64 %offset) {
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%addrint = add i64 %base, %offset
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%addr = inttoptr i64 %addrint to fp128*
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store volatile fp128 %val64, fp128* %addr
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ret void
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}
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; Check that STRQro is generated for both cases if we're optimizing for code size.
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; CHECK-LABEL: strqrox_optsize:
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; CHECK-STRQRO: str q{{[0-9]+}}, [x{{[0-9]+}}, x
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; CHECK-NOSTRQRO: str q{{[0-9]+}}, [x{{[0-9]+}}, x
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define void @strqrox_optsize(fp128 %val64, i64 %base, i64 %offset) minsize {
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%addrint = add i64 %base, %offset
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%addr = inttoptr i64 %addrint to fp128*
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store volatile fp128 %val64, fp128* %addr
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ret void
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}
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; CHECK-LABEL: strqrow:
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; CHECK-STRQRO: str q{{[0-9]+}}, [x{{[0-9]+}}, w
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; CHECK-NOSTRQRO-NOT: str q{{[0-9]+}}, [x{{[0-9]+}}, w
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define void @strqrow(fp128 %val64, i64 %base, i32 %offset) {
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%offset64 = zext i32 %offset to i64
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%addrint = add i64 %base, %offset64
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%addr = inttoptr i64 %addrint to fp128*
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store volatile fp128 %val64, fp128* %addr
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ret void
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}
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; Check that STRQro is generated for both cases if we're optimizing for code size.
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; CHECK-LABEL: strqrow_optsize:
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; CHECK-STRQRO: str q{{[0-9]+}}, [x{{[0-9]+}}, w
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; CHECK-NOSTRQRO: str q{{[0-9]+}}, [x{{[0-9]+}}, w
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define void @strqrow_optsize(fp128 %val64, i64 %base, i32 %offset) minsize {
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%offset64 = zext i32 %offset to i64
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%addrint = add i64 %base, %offset64
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%addr = inttoptr i64 %addrint to fp128*
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store volatile fp128 %val64, fp128* %addr
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ret void
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}
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