mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
9e36496eb3
Patch by David Tweed! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164996 91177308-0d34-0410-b5e6-96231b3b80d8
123 lines
3.1 KiB
LLVM
123 lines
3.1 KiB
LLVM
; RUN: opt -insert-edge-profiling -o %t1 < %s
|
|
; RUN: rm -f %t1.prof_data
|
|
; RUN: lli %defaultjit -load %llvmshlibdir/libprofile_rt%shlibext %t1 \
|
|
; RUN: -llvmprof-output %t1.prof_data
|
|
; RUN: opt -profile-file %t1.prof_data -profile-metadata-loader -S -o - < %s \
|
|
; RUN: | FileCheck %s
|
|
; RUN: rm -f %t1.prof_data
|
|
|
|
; FIXME: profile_rt.dll could be built on win32.
|
|
; REQUIRES: loadable_module
|
|
|
|
;; func_mod - Branch taken 6 times in 7.
|
|
define i32 @func_mod(i32 %N) nounwind uwtable {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%N.addr = alloca i32, align 4
|
|
store i32 %N, i32* %N.addr, align 4
|
|
%0 = load i32* %N.addr, align 4
|
|
%rem = srem i32 %0, 7
|
|
%tobool = icmp ne i32 %rem, 0
|
|
br i1 %tobool, label %if.then, label %if.else
|
|
; CHECK: br i1 %tobool, label %if.then, label %if.else, !prof !0
|
|
|
|
if.then:
|
|
store i32 1, i32* %retval
|
|
br label %return
|
|
|
|
if.else:
|
|
store i32 0, i32* %retval
|
|
br label %return
|
|
|
|
return:
|
|
%1 = load i32* %retval
|
|
ret i32 %1
|
|
}
|
|
|
|
;; func_const_true - conditional branch which 100% taken probability.
|
|
define i32 @func_const_true(i32 %N) nounwind uwtable {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%N.addr = alloca i32, align 4
|
|
store i32 %N, i32* %N.addr, align 4
|
|
%0 = load i32* %N.addr, align 4
|
|
%cmp = icmp eq i32 %0, 1
|
|
br i1 %cmp, label %if.then, label %if.end
|
|
; CHECK: br i1 %cmp, label %if.then, label %if.end, !prof !1
|
|
|
|
if.then:
|
|
store i32 1, i32* %retval
|
|
br label %return
|
|
|
|
if.end:
|
|
store i32 0, i32* %retval
|
|
br label %return
|
|
|
|
return:
|
|
%1 = load i32* %retval
|
|
ret i32 %1
|
|
}
|
|
|
|
;; func_const_true - conditional branch which 100% not-taken probability.
|
|
define i32 @func_const_false(i32 %N) nounwind uwtable {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%N.addr = alloca i32, align 4
|
|
store i32 %N, i32* %N.addr, align 4
|
|
%0 = load i32* %N.addr, align 4
|
|
%cmp = icmp eq i32 %0, 1
|
|
br i1 %cmp, label %if.then, label %if.end
|
|
; CHECK: br i1 %cmp, label %if.then, label %if.end, !prof !2
|
|
|
|
if.then:
|
|
store i32 1, i32* %retval
|
|
br label %return
|
|
|
|
if.end:
|
|
store i32 0, i32* %retval
|
|
br label %return
|
|
|
|
return:
|
|
%1 = load i32* %retval
|
|
ret i32 %1
|
|
}
|
|
|
|
define i32 @main(i32 %argc, i8** %argv) nounwind uwtable {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%argc.addr = alloca i32, align 4
|
|
%argv.addr = alloca i8**, align 8
|
|
%loop = alloca i32, align 4
|
|
store i32 0, i32* %retval
|
|
store i32 0, i32* %loop, align 4
|
|
br label %for.cond
|
|
|
|
for.cond:
|
|
%0 = load i32* %loop, align 4
|
|
%cmp = icmp slt i32 %0, 7000
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
; CHECK: br i1 %cmp, label %for.body, label %for.end, !prof !3
|
|
|
|
for.body:
|
|
%1 = load i32* %loop, align 4
|
|
%call = call i32 @func_mod(i32 %1)
|
|
br label %for.inc
|
|
|
|
for.inc:
|
|
%2 = load i32* %loop, align 4
|
|
%inc = add nsw i32 %2, 1
|
|
store i32 %inc, i32* %loop, align 4
|
|
br label %for.cond
|
|
|
|
for.end:
|
|
%call1 = call i32 @func_const_true(i32 1)
|
|
%call2 = call i32 @func_const_false(i32 0)
|
|
ret i32 0
|
|
}
|
|
|
|
; CHECK: !0 = metadata !{metadata !"branch_weights", i32 6000, i32 1000}
|
|
; CHECK: !1 = metadata !{metadata !"branch_weights", i32 1, i32 0}
|
|
; CHECK: !2 = metadata !{metadata !"branch_weights", i32 0, i32 1}
|
|
; CHECK: !3 = metadata !{metadata !"branch_weights", i32 7000, i32 1}
|
|
; CHECK-NOT: !4
|