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e5fcd53d38
The condition for clearing the folding candidate list was clamped together with the "uninteresting instruction" condition. This is too conservative, e.g. we don't need to clear the list when encountering an IMPLICIT_DEF. Differential Revision: http://reviews.llvm.org/D11591 llvm-svn: 244577
180 lines
3.6 KiB
LLVM
180 lines
3.6 KiB
LLVM
; RUN: llc -mtriple=i386-unknown-unknown -mcpu=core-avx2 < %s | FileCheck --check-prefix=BMI2 %s
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; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=core-avx2 < %s | FileCheck --check-prefix=BMI264 %s
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define i32 @shl32(i32 %x, i32 %shamt) nounwind uwtable readnone {
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entry:
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%shl = shl i32 %x, %shamt
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; BMI2: shl32
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; BMI2: shlxl
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; BMI2: ret
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; BMI264: shl32
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; BMI264: shlxl
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; BMI264: ret
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ret i32 %shl
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}
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define i32 @shl32i(i32 %x) nounwind uwtable readnone {
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entry:
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%shl = shl i32 %x, 5
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; BMI2: shl32i
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; BMI2-NOT: shlxl
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; BMI2: ret
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; BMI264: shl32i
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; BMI264-NOT: shlxl
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; BMI264: ret
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ret i32 %shl
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}
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define i32 @shl32p(i32* %p, i32 %shamt) nounwind uwtable readnone {
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entry:
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%x = load i32, i32* %p
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%shl = shl i32 %x, %shamt
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; BMI2: shl32p
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; BMI2: shlxl %{{.+}}, ({{.+}}), %{{.+}}
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; BMI2: ret
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; BMI264: shl32p
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; BMI264: shlxl %{{.+}}, ({{.+}}), %{{.+}}
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; BMI264: ret
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ret i32 %shl
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}
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define i32 @shl32pi(i32* %p) nounwind uwtable readnone {
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entry:
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%x = load i32, i32* %p
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%shl = shl i32 %x, 5
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; BMI2: shl32pi
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; BMI2-NOT: shlxl
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; BMI2: ret
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; BMI264: shl32pi
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; BMI264-NOT: shlxl
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; BMI264: ret
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ret i32 %shl
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}
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define i64 @shl64(i64 %x, i64 %shamt) nounwind uwtable readnone {
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entry:
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%shl = shl i64 %x, %shamt
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; BMI264: shl64
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; BMI264: shlxq
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; BMI264: ret
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ret i64 %shl
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}
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define i64 @shl64i(i64 %x) nounwind uwtable readnone {
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entry:
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%shl = shl i64 %x, 7
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; BMI264: shl64i
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; BMI264-NOT: shlxq
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; BMI264: ret
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ret i64 %shl
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}
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define i64 @shl64p(i64* %p, i64 %shamt) nounwind uwtable readnone {
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entry:
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%x = load i64, i64* %p
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%shl = shl i64 %x, %shamt
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; BMI264: shl64p
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; BMI264: shlxq %{{.+}}, ({{.+}}), %{{.+}}
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; BMI264: ret
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ret i64 %shl
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}
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define i64 @shl64pi(i64* %p) nounwind uwtable readnone {
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entry:
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%x = load i64, i64* %p
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%shl = shl i64 %x, 7
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; BMI264: shl64pi
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; BMI264-NOT: shlxq
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; BMI264: ret
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ret i64 %shl
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}
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define i32 @lshr32(i32 %x, i32 %shamt) nounwind uwtable readnone {
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entry:
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%shl = lshr i32 %x, %shamt
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; BMI2: lshr32
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; BMI2: shrxl
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; BMI2: ret
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; BMI264: lshr32
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; BMI264: shrxl
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; BMI264: ret
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ret i32 %shl
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}
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define i32 @lshr32p(i32* %p, i32 %shamt) nounwind uwtable readnone {
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entry:
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%x = load i32, i32* %p
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%shl = lshr i32 %x, %shamt
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; BMI2: lshr32p
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; BMI2: shrxl %{{.+}}, ({{.+}}), %{{.+}}
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; BMI2: ret
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; BMI264: lshr32p
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; BMI264: shrxl %{{.+}}, ({{.+}}), %{{.+}}
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; BMI264: ret
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ret i32 %shl
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}
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define i64 @lshr64(i64 %x, i64 %shamt) nounwind uwtable readnone {
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entry:
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%shl = lshr i64 %x, %shamt
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; BMI264: lshr64
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; BMI264: shrxq
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; BMI264: ret
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ret i64 %shl
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}
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define i64 @lshr64p(i64* %p, i64 %shamt) nounwind uwtable readnone {
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entry:
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%x = load i64, i64* %p
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%shl = lshr i64 %x, %shamt
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; BMI264: lshr64p
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; BMI264: shrxq %{{.+}}, ({{.+}}), %{{.+}}
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; BMI264: ret
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ret i64 %shl
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}
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define i32 @ashr32(i32 %x, i32 %shamt) nounwind uwtable readnone {
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entry:
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%shl = ashr i32 %x, %shamt
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; BMI2: ashr32
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; BMI2: sarxl
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; BMI2: ret
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; BMI264: ashr32
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; BMI264: sarxl
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; BMI264: ret
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ret i32 %shl
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}
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define i32 @ashr32p(i32* %p, i32 %shamt) nounwind uwtable readnone {
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entry:
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%x = load i32, i32* %p
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%shl = ashr i32 %x, %shamt
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; BMI2: ashr32p
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; Source order scheduling prevents folding, rdar:14208996.
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; BMI2: sarxl %{{.+}}, ({{.+}}), %{{.+}}
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; BMI2: ret
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; BMI264: ashr32p
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; BMI264: sarxl %{{.+}}, ({{.+}}), %{{.+}}
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; BMI264: ret
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ret i32 %shl
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}
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define i64 @ashr64(i64 %x, i64 %shamt) nounwind uwtable readnone {
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entry:
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%shl = ashr i64 %x, %shamt
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; BMI264: ashr64
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; BMI264: sarxq
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; BMI264: ret
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ret i64 %shl
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}
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define i64 @ashr64p(i64* %p, i64 %shamt) nounwind uwtable readnone {
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entry:
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%x = load i64, i64* %p
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%shl = ashr i64 %x, %shamt
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; BMI264: ashr64p
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; BMI264: sarxq %{{.+}}, ({{.+}}), %{{.+}}
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; BMI264: ret
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ret i64 %shl
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}
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