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.
45 lines
1.6 KiB
LLVM
45 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
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; RUN: opt < %s -O3 -S | FileCheck %s
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%Zip = type { { ptr, ptr }, { [32 x i8], { i64, i64 } } }
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define void @foo(ptr %a, <32 x i8> %_0) #0 {
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; CHECK-LABEL: define void @foo(
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; CHECK-SAME: ptr writeonly captures(none) initializes((0, 32)) [[A:%.*]], <32 x i8> [[_0:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: start:
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; CHECK-NEXT: store <32 x i8> [[_0]], ptr [[A]], align 1
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; CHECK-NEXT: ret void
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;
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start:
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%z = alloca %Zip, align 8
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%sroa_1 = getelementptr i8, ptr %z, i64 16
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store <32 x i8> %_0, ptr %sroa_1, align 8
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%len_ = getelementptr i8, ptr %z, i64 56
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store i64 32, ptr %len_, align 8
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%_1 = getelementptr %Zip, ptr %z, i64 0, i32 1, i32 1
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%_2 = getelementptr %Zip, ptr %z, i64 0, i32 1, i32 1, i32 1
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%len = load i64, ptr %_2, align 8
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%_10 = getelementptr %Zip, ptr %z, i64 0, i32 1
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br label %body
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body: ; preds = %body, %start
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%_34 = phi ptr [ %_34i, %body ], [ %a, %start ]
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%idx = phi i64 [ %idx_, %body ], [ 0, %start ]
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%_34i = getelementptr i8, ptr %_34, i64 1
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%idx_ = add i64 %idx, 1
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store i64 0, ptr %_1, align 8
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%_24 = getelementptr i8, ptr %_10, i64 %idx
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%_18 = load i8, ptr %_24, align 1
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store i8 %_18, ptr %_34, align 1
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%_6 = icmp eq i64 %len, %idx_
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br i1 %_6, label %exit, label %body
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exit: ; preds = %body
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ret void
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}
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attributes #0 = { "target-cpu"="znver3" }
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