8136a0172b
Reland 877a9f9abec61f06e39f1cd872e37b828139c2d1 since D138654 (parent) has been fixed with 9ebaf4fef4aac89d4eff08e48185d61bc893f14e and with 8f1e11c5a7d70f96943a72649daa69f152d73e90. Differential Revision: https://reviews.llvm.org/D126455
60 lines
2.4 KiB
LLVM
60 lines
2.4 KiB
LLVM
; RUN: opt -passes=ipsccp,inline,instcombine -specialize-functions -force-function-specialization -func-specialization-max-iters=2 -S < %s | FileCheck %s --check-prefix=ITERS2
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; RUN: opt -passes=ipsccp,inline,instcombine -specialize-functions -force-function-specialization -func-specialization-max-iters=3 -S < %s | FileCheck %s --check-prefix=ITERS3
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; RUN: opt -passes=ipsccp,inline,instcombine -specialize-functions -force-function-specialization -func-specialization-max-iters=4 -S < %s | FileCheck %s --check-prefix=ITERS4
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@low = internal constant i32 0, align 4
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@high = internal constant i32 6, align 4
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define internal void @recursiveFunc(ptr nocapture readonly %lo, i32 %step, ptr nocapture readonly %hi) {
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%lo.temp = alloca i32, align 4
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%hi.temp = alloca i32, align 4
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%lo.load = load i32, ptr %lo, align 4
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%hi.load = load i32, ptr %hi, align 4
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%cmp = icmp ne i32 %lo.load, %hi.load
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br i1 %cmp, label %block6, label %ret.block
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block6:
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call void @print_val(i32 %lo.load, i32 %hi.load)
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%add = add nsw i32 %lo.load, %step
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%sub = sub nsw i32 %hi.load, %step
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store i32 %add, ptr %lo.temp, align 4
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store i32 %sub, ptr %hi.temp, align 4
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call void @recursiveFunc(ptr nonnull %lo.temp, i32 %step, ptr nonnull %hi.temp)
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br label %ret.block
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ret.block:
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ret void
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}
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; ITERS2: @funcspec.arg.4 = internal constant i32 2
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; ITERS2: @funcspec.arg.5 = internal constant i32 4
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; ITERS3: @funcspec.arg.7 = internal constant i32 3
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; ITERS3: @funcspec.arg.8 = internal constant i32 3
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define i32 @main() {
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; ITERS2-LABEL: @main(
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; ITERS2-NEXT: call void @print_val(i32 0, i32 6)
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; ITERS2-NEXT: call void @print_val(i32 1, i32 5)
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; ITERS2-NEXT: call void @recursiveFunc(ptr nonnull @funcspec.arg.4, i32 1, ptr nonnull @funcspec.arg.5)
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; ITERS2-NEXT: ret i32 0
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;
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; ITERS3-LABEL: @main(
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; ITERS3-NEXT: call void @print_val(i32 0, i32 6)
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; ITERS3-NEXT: call void @print_val(i32 1, i32 5)
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; ITERS3-NEXT: call void @print_val(i32 2, i32 4)
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; ITERS3-NEXT: call void @recursiveFunc(ptr nonnull @funcspec.arg.7, i32 1, ptr nonnull @funcspec.arg.8)
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; ITERS3-NEXT: ret i32 0
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;
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; ITERS4-LABEL: @main(
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; ITERS4-NEXT: call void @print_val(i32 0, i32 6)
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; ITERS4-NEXT: call void @print_val(i32 1, i32 5)
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; ITERS4-NEXT: call void @print_val(i32 2, i32 4)
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; ITERS4-NEXT: ret i32 0
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;
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call void @recursiveFunc(ptr nonnull @low, i32 1, ptr nonnull @high)
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ret i32 0
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}
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declare dso_local void @print_val(i32, i32)
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