29441e4f5f
This PR removes the old `nocapture` attribute, replacing it with the new `captures` attribute introduced in #116990. This change is intended to be essentially NFC, replacing existing uses of `nocapture` with `captures(none)` without adding any new analysis capabilities. Making use of non-`none` values is left for a followup. Some notes: * `nocapture` will be upgraded to `captures(none)` by the bitcode reader. * `nocapture` will also be upgraded by the textual IR reader. This is to make it easier to use old IR files and somewhat reduce the test churn in this PR. * Helper APIs like `doesNotCapture()` will check for `captures(none)`. * MLIR import will convert `captures(none)` into an `llvm.nocapture` attribute. The representation in the LLVM IR dialect should be updated separately.
50 lines
2.4 KiB
LLVM
50 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
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; RUN: opt -passes=inline -preserve-alignment-assumptions-during-inlining -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-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-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Test behavior of inserted alignment assumptions with byref. There is
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; no implied copy to a higher alignment, so an alignment assume call
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; should be inserted.
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define void @byref_callee(ptr align(128) byref(float) nocapture %a, ptr %b) #0 {
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; CHECK-LABEL: define {{[^@]+}}@byref_callee
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; CHECK-SAME: (ptr byref(float) align 128 captures(none) [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[LOAD:%.*]] = load float, ptr [[A]], align 4
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; CHECK-NEXT: [[B_IDX:%.*]] = getelementptr inbounds float, ptr [[B]], i64 8
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; CHECK-NEXT: [[ADD:%.*]] = fadd float [[LOAD]], 2.000000e+00
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; CHECK-NEXT: store float [[ADD]], ptr [[B_IDX]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%load = load float, ptr %a, align 4
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%b.idx = getelementptr inbounds float, ptr %b, i64 8
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%add = fadd float %load, 2.0
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store float %add, ptr %b.idx, align 4
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ret void
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}
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define void @byref_caller(ptr nocapture align 64 %a, ptr %b) #0 {
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; CHECK-LABEL: define {{[^@]+}}@byref_caller
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; CHECK-SAME: (ptr align 64 captures(none) [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[A]], i64 128) ]
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; CHECK-NEXT: [[LOAD_I:%.*]] = load float, ptr [[A]], align 4
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; CHECK-NEXT: [[B_IDX_I:%.*]] = getelementptr inbounds float, ptr [[B]], i64 8
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; CHECK-NEXT: [[ADD_I:%.*]] = fadd float [[LOAD_I]], 2.000000e+00
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; CHECK-NEXT: store float [[ADD_I]], ptr [[B_IDX_I]], align 4
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; CHECK-NEXT: [[CALLER_LOAD:%.*]] = load float, ptr [[B]], align 4
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 7
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; CHECK-NEXT: store float [[CALLER_LOAD]], ptr [[ARRAYIDX]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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call void @byref_callee(ptr align(128) byref(float) %a, ptr %b)
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%caller.load = load float, ptr %b, align 4
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%arrayidx = getelementptr inbounds float, ptr %a, i64 7
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store float %caller.load, ptr %arrayidx, align 4
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ret void
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}
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attributes #0 = { nounwind uwtable }
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