ce9d3f09b4
After each iteration of the function specializer, constant stack values are promoted to constant globals in order to enable recursive function specialization. This should also be done once before running the specializer. Enables specialization of _QMbrute_forcePdigits_2 from SPEC2017:548.exchange2_r. Differential Revision: https://reviews.llvm.org/D152799
96 lines
4.0 KiB
LLVM
96 lines
4.0 KiB
LLVM
; RUN: opt -passes="ipsccp<func-spec>,inline,instcombine" -force-specialization -funcspec-max-iters=1 -S < %s | FileCheck %s --check-prefix=ITERS1
|
|
; RUN: opt -passes="ipsccp<func-spec>,inline,instcombine" -force-specialization -funcspec-max-iters=2 -S < %s | FileCheck %s --check-prefix=ITERS2
|
|
; RUN: opt -passes="ipsccp<func-spec>,inline,instcombine" -force-specialization -funcspec-max-iters=3 -S < %s | FileCheck %s --check-prefix=ITERS3
|
|
; RUN: opt -passes="ipsccp<func-spec>,inline,instcombine" -force-specialization -funcspec-max-iters=4 -S < %s | FileCheck %s --check-prefix=ITERS4
|
|
|
|
@low = internal constant i32 0, align 4
|
|
@high = internal constant i32 6, align 4
|
|
|
|
define internal void @recursiveFunc(ptr nocapture readonly %lo, i32 %step, ptr nocapture readonly %hi) {
|
|
%lo.temp = alloca i32, align 4
|
|
%hi.temp = alloca i32, align 4
|
|
%lo.load = load i32, ptr %lo, align 4
|
|
%hi.load = load i32, ptr %hi, align 4
|
|
%cmp = icmp ne i32 %lo.load, %hi.load
|
|
br i1 %cmp, label %block6, label %ret.block
|
|
|
|
block6:
|
|
call void @print_val(i32 %lo.load, i32 %hi.load)
|
|
%add = add nsw i32 %lo.load, %step
|
|
%sub = sub nsw i32 %hi.load, %step
|
|
store i32 %add, ptr %lo.temp, align 4
|
|
store i32 %sub, ptr %hi.temp, align 4
|
|
call void @recursiveFunc(ptr nonnull %lo.temp, i32 %step, ptr nonnull %hi.temp)
|
|
br label %ret.block
|
|
|
|
ret.block:
|
|
ret void
|
|
}
|
|
|
|
; ITERS1: @funcspec.arg = internal constant i32 0
|
|
; ITERS1: @funcspec.arg.1 = internal constant i32 6
|
|
; ITERS1: @funcspec.arg.3 = internal constant i32 1
|
|
; ITERS1: @funcspec.arg.4 = internal constant i32 5
|
|
|
|
; ITERS2: @funcspec.arg = internal constant i32 0
|
|
; ITERS2: @funcspec.arg.1 = internal constant i32 6
|
|
; ITERS2: @funcspec.arg.3 = internal constant i32 1
|
|
; ITERS2: @funcspec.arg.4 = internal constant i32 5
|
|
; ITERS2: @funcspec.arg.6 = internal constant i32 2
|
|
; ITERS2: @funcspec.arg.7 = internal constant i32 4
|
|
|
|
; ITERS3: @funcspec.arg = internal constant i32 0
|
|
; ITERS3: @funcspec.arg.1 = internal constant i32 6
|
|
; ITERS3: @funcspec.arg.3 = internal constant i32 1
|
|
; ITERS3: @funcspec.arg.4 = internal constant i32 5
|
|
; ITERS3: @funcspec.arg.6 = internal constant i32 2
|
|
; ITERS3: @funcspec.arg.7 = internal constant i32 4
|
|
; ITERS3: @funcspec.arg.9 = internal constant i32 3
|
|
; ITERS3: @funcspec.arg.10 = internal constant i32 3
|
|
|
|
; ITERS4: @funcspec.arg = internal constant i32 0
|
|
; ITERS4: @funcspec.arg.1 = internal constant i32 6
|
|
; ITERS4: @funcspec.arg.3 = internal constant i32 1
|
|
; ITERS4: @funcspec.arg.4 = internal constant i32 5
|
|
; ITERS4: @funcspec.arg.6 = internal constant i32 2
|
|
; ITERS4: @funcspec.arg.7 = internal constant i32 4
|
|
; ITERS4: @funcspec.arg.9 = internal constant i32 3
|
|
; ITERS4: @funcspec.arg.10 = internal constant i32 3
|
|
|
|
define i32 @main() {
|
|
; ITERS1-LABEL: @main(
|
|
; ITERS1-NEXT: call void @print_val(i32 0, i32 6)
|
|
; ITERS1-NEXT: call void @recursiveFunc(ptr nonnull @funcspec.arg.3, i32 1, ptr nonnull @funcspec.arg.4)
|
|
; ITERS1-NEXT: ret i32 0
|
|
;
|
|
; ITERS2-LABEL: @main(
|
|
; ITERS2-NEXT: call void @print_val(i32 0, i32 6)
|
|
; ITERS2-NEXT: call void @print_val(i32 1, i32 5)
|
|
; ITERS2-NEXT: call void @recursiveFunc(ptr nonnull @funcspec.arg.6, i32 1, ptr nonnull @funcspec.arg.7)
|
|
; ITERS2-NEXT: ret i32 0
|
|
;
|
|
; ITERS3-LABEL: @main(
|
|
; ITERS3-NEXT: call void @print_val(i32 0, i32 6)
|
|
; ITERS3-NEXT: call void @print_val(i32 1, i32 5)
|
|
; ITERS3-NEXT: call void @print_val(i32 2, i32 4)
|
|
; ITERS3-NEXT: call void @recursiveFunc(ptr nonnull @funcspec.arg.9, i32 1, ptr nonnull @funcspec.arg.10)
|
|
; ITERS3-NEXT: ret i32 0
|
|
;
|
|
; ITERS4-LABEL: @main(
|
|
; ITERS4-NEXT: call void @print_val(i32 0, i32 6)
|
|
; ITERS4-NEXT: call void @print_val(i32 1, i32 5)
|
|
; ITERS4-NEXT: call void @print_val(i32 2, i32 4)
|
|
; ITERS4-NEXT: ret i32 0
|
|
;
|
|
%lo.temp = alloca i32, align 4
|
|
%hi.temp = alloca i32, align 4
|
|
%lo.load = load i32, ptr @low, align 4
|
|
%hi.load = load i32, ptr @high, align 4
|
|
store i32 %lo.load, ptr %lo.temp, align 4
|
|
store i32 %hi.load, ptr %hi.temp, align 4
|
|
call void @recursiveFunc(ptr nonnull %lo.temp, i32 1, ptr nonnull %hi.temp)
|
|
ret i32 0
|
|
}
|
|
|
|
declare dso_local void @print_val(i32, i32)
|