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; RUN: opt < %s -mtriple=systemz-unknown -mcpu=z15 -passes='cgscc(inline)' -disable-output \
; RUN: -debug-only=inline,systemztti 2>&1 | FileCheck %s
; REQUIRES: asserts
; Check that the inlining threshold is incremented for a function using an
; argument only as a memcpy source.
;
; CHECK: Inlining calls in: root_function
; CHECK: Inlining {{.*}} Call: call void @leaf_function_A(ptr %Dst)
; CHECK: ++ SZTTI Adding inlining bonus: 1000
; CHECK: Inlining {{.*}} Call: call void @leaf_function_B(ptr %Dst, ptr %Src)
define void @leaf_function_A(ptr %Dst) {
entry:
call void @llvm.memcpy.p0.p0.i64(ptr %Dst, ptr undef, i64 16, i1 false)
ret void
}
define void @leaf_function_B(ptr %Dst, ptr %Src) {
entry:
call void @llvm.memcpy.p0.p0.i64(ptr %Dst, ptr %Src, i64 16, i1 false)
ret void
}
define void @root_function(ptr %Dst, ptr %Src) {
entry:
call void @leaf_function_A(ptr %Dst)
call void @leaf_function_B(ptr %Dst, ptr %Src)
ret void
}
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg)
; Check that the inlining threshold is incremented in case of multiple
; accesses of a global variable by both caller and callee (which is true here
; after the first call is inlined).
;
; CHECK: Inlining calls in: Caller1
; CHECK: ++ SZTTI Adding inlining bonus: 1000
@GlobV = external global i32
define i64 @Caller1(i1 %cond1, i32 %0) #0 {
entry:
br i1 %cond1, label %sw.bb3437, label %fake_end
common.ret: ; preds = %fake_end, %sw.bb3437
ret i64 0
sw.bb3437: ; preds = %entry
%call34652 = call i32 @Callee1(ptr null, i32 %0)
br label %common.ret
fake_end: ; preds = %entry
%call57981 = call i32 @Callee1(ptr null, i32 0)
br label %common.ret
}
define i32 @Callee1(ptr %rex, i32 %parenfloor) #0 {
entry:
%cmp21 = icmp slt i32 %parenfloor, 0
br i1 %cmp21, label %for.body, label %for.end
common.ret: ; preds = %for.end, %for.body
ret i32 0
for.body: ; preds = %entry
%0 = load i32, ptr @GlobV, align 4
%inc = or i32 %0, 1
store i32 %inc, ptr @GlobV, align 4
store i64 0, ptr %rex, align 8
%1 = load i32, ptr @GlobV, align 4
%inc28 = or i32 %1, 1
store i32 %inc28, ptr @GlobV, align 4
store i64 0, ptr %rex, align 8
%2 = load i32, ptr @GlobV, align 4
%inc35 = or i32 %2, 1
store i32 %inc35, ptr @GlobV, align 4
store i32 0, ptr %rex, align 8
br label %common.ret
for.end: ; preds = %entry
store i32 0, ptr @GlobV, align 4
store i32 0, ptr %rex, align 8
%3 = load i32, ptr @GlobV, align 4
%inc42 = or i32 %3, 1
store i32 %inc42, ptr @GlobV, align 4
store i32 0, ptr %rex, align 8
%4 = load i32, ptr @GlobV, align 4
%inc48 = or i32 %4, 1
store i32 %inc48, ptr @GlobV, align 4
br label %common.ret
}
; Check that the inlining threshold is incremented for a function that is
; accessing an alloca of the caller multiple times.
;
; CHECK: Inlining calls in: Caller2
; CHECK: ++ SZTTI Adding inlining bonus: 550
define i1 @Caller2() {
entry:
%A = alloca [80 x i64], align 8
call void @Callee2(ptr %A)
ret i1 false
}
define void @Callee2(ptr nocapture readonly %Arg) {
entry:
%nonzero = getelementptr i8, ptr %Arg, i64 48
%0 = load i32, ptr %nonzero, align 8
%tobool1.not = icmp eq i32 %0, 0
br i1 %tobool1.not, label %if.else38, label %if.then2
if.then2: ; preds = %entry
%1 = load i32, ptr %Arg, align 4
%tobool4.not = icmp eq i32 %1, 0
br i1 %tobool4.not, label %common.ret, label %if.then5
if.then5: ; preds = %if.then2
%2 = load double, ptr %Arg, align 8
%slab_den = getelementptr i8, ptr %Arg, i64 24
%3 = load double, ptr %slab_den, align 8
%mul = fmul double %2, %3
%cmp = fcmp olt double %mul, 0.000000e+00
br i1 %cmp, label %common.ret, label %if.end55
common.ret: ; preds = %if.end100, %if.else79, %if.end55, %if.else38, %if.then5, %if.then2
ret void
if.else38: ; preds = %entry
%4 = load double, ptr %Arg, align 8
%cmp52 = fcmp ogt double %4, 0.000000e+00
br i1 %cmp52, label %common.ret, label %if.end55
if.end55: ; preds = %if.else38, %if.then5
%arrayidx57 = getelementptr i8, ptr %Arg, i64 52
%5 = load i32, ptr %arrayidx57, align 4
%tobool58.not = icmp eq i32 %5, 0
br i1 %tobool58.not, label %common.ret, label %if.then59
if.then59: ; preds = %if.end55
%arrayidx61 = getelementptr i8, ptr %Arg, i64 64
%6 = load i32, ptr %arrayidx61, align 4
%tobool62.not = icmp eq i32 %6, 0
br i1 %tobool62.not, label %if.else79, label %if.end100
if.else79: ; preds = %if.then59
%arrayidx84 = getelementptr i8, ptr %Arg, i64 8
%7 = load double, ptr %arrayidx84, align 8
%arrayidx87 = getelementptr i8, ptr %Arg, i64 32
%8 = load double, ptr %arrayidx87, align 8
%mul88 = fmul double %7, %8
%9 = fcmp olt double %mul88, 0.000000e+00
br i1 %9, label %common.ret, label %if.end100
if.end100: ; preds = %if.else79, %if.then59
%arrayidx151 = getelementptr i8, ptr %Arg, i64 16
%10 = load double, ptr %arrayidx151, align 8
%arrayidx154 = getelementptr i8, ptr %Arg, i64 40
%11 = load double, ptr %arrayidx154, align 8
%mul155 = fmul double %10, %11
%cmp181 = fcmp olt double %mul155, 0.000000e+00
br label %common.ret
}
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