d896b1f5a6
The string pooling pass was incorrectly pooling global varables that were part of llvm.used or llvm.compiler.used. This patch fixes the pass to prevent that by checking each candidate to make sure that it is not in either of those lists.
58 lines
1.8 KiB
LLVM
58 lines
1.8 KiB
LLVM
;; Test that the string pooling pass does not pool globals that are
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;; in llvm.used or in llvm.compiler.used.
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; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple powerpc-ibm-aix-xcoff -data-sections=false < %s | \
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; RUN: FileCheck %s
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; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple powerpc64-ibm-aix-xcoff -data-sections=false < %s | \
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; RUN: FileCheck %s
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@keep_this = internal constant [5 x i8] c"keep1", align 1
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@keep_this2 = internal constant [5 x i8] c"keep2", align 1
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@.str.1 = private unnamed_addr constant [12 x i8] c"str1_STRING\00", align 1
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@.str.2 = private unnamed_addr constant [12 x i8] c"str2_STRING\00", align 1
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@.str.3 = private unnamed_addr constant [12 x i8] c"str3_STRING\00", align 1
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@llvm.used = appending global [1 x ptr] [ptr @keep_this], section "llvm.metadata"
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@llvm.compiler.used = appending global [1 x ptr] [ptr @keep_this2], section "llvm.metadata"
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declare signext i32 @callee(ptr noundef)
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define dso_local signext i32 @keep1() {
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entry:
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%call = tail call signext i32 @callee(ptr noundef nonnull @keep_this)
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ret i32 %call
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}
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define dso_local signext i32 @keep2() {
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entry:
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%call = tail call signext i32 @callee(ptr noundef nonnull @keep_this2)
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ret i32 %call
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}
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define dso_local signext i32 @str1() {
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entry:
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%call = tail call signext i32 @callee(ptr noundef nonnull @.str.1)
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ret i32 %call
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}
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define dso_local signext i32 @str2() {
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entry:
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%call = tail call signext i32 @callee(ptr noundef nonnull @.str.2)
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ret i32 %call
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}
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define dso_local signext i32 @str3() {
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entry:
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%call = tail call signext i32 @callee(ptr noundef nonnull @.str.3)
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ret i32 %call
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}
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; CHECK: .lglobl keep_this
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; CHECK: keep_this:
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; CHECK: .lglobl keep_this2
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; CHECK: keep_this2:
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; CHECK: L..__ModuleStringPool:
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; CHECK: .string "str1_STRING"
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; CHECK: .string "str2_STRING"
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; CHECK: .string "str3_STRING"
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