122 lines
4.2 KiB
LLVM
122 lines
4.2 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
|
|
define signext i32 @test1(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
|
|
entry:
|
|
; CHECK-LABEL: test1:
|
|
; CHECK: std 2, 24(1)
|
|
; CHECK-NOT: std 2, 24(1)
|
|
%call = tail call signext i32 %Func(i32 signext %i)
|
|
%call1 = tail call signext i32 %Func2(i32 signext %i)
|
|
%add2 = add nsw i32 %call1, %call
|
|
ret i32 %add2
|
|
}
|
|
|
|
define signext i32 @test2(i32 signext %i, i32 signext %j, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
|
|
entry:
|
|
; CHECK-LABEL: test2:
|
|
; CHECK: std 2, 24(1)
|
|
; CHECK-NOT: std 2, 24(1)
|
|
%call = tail call signext i32 %Func(i32 signext %i)
|
|
%tobool = icmp eq i32 %j, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
if.then: ; preds = %entry
|
|
%call1 = tail call signext i32 %Func(i32 signext %i)
|
|
%add2 = add nsw i32 %call1, %call
|
|
%call3 = tail call signext i32 %Func2(i32 signext %i)
|
|
%add4 = add nsw i32 %add2, %call3
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %entry, %if.then
|
|
%Sum.0 = phi i32 [ %add4, %if.then ], [ %call, %entry ]
|
|
%call5 = tail call signext i32 %Func(i32 signext %i)
|
|
%add6 = add nsw i32 %call5, %Sum.0
|
|
ret i32 %add6
|
|
}
|
|
|
|
; Check for multiple TOC saves with if then else where neither dominates the other.
|
|
define signext i32 @test3(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
|
|
; CHECK-LABEL: test3:
|
|
; CHECK: std 2, 24(1)
|
|
; CHECK-NOT: std 2, 24(1)
|
|
entry:
|
|
%tobool = icmp eq i32 %i, 0
|
|
br i1 %tobool, label %if.else, label %if.then
|
|
|
|
if.then: ; preds = %entry
|
|
%call = tail call signext i32 %Func(i32 signext %i)
|
|
br label %if.end
|
|
|
|
if.else: ; preds = %entry
|
|
%call1 = tail call signext i32 %Func2(i32 signext 0)
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.else, %if.then
|
|
%Sum.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
|
|
%call3 = tail call signext i32 %Func(i32 signext %i)
|
|
%add4 = add nsw i32 %call3, %Sum.0
|
|
ret i32 %add4
|
|
}
|
|
|
|
define signext i32 @test4(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
|
|
; CHECK-LABEL: test4:
|
|
; CHECK: std 2, 24(1)
|
|
; CHECK-NOT: std 2, 24(1)
|
|
|
|
entry:
|
|
%call = tail call signext i32 %Func(i32 signext %i)
|
|
%tobool = icmp eq i32 %i, 0
|
|
br i1 %tobool, label %if.else, label %if.then
|
|
|
|
if.then: ; preds = %entry
|
|
%call1 = tail call signext i32 %Func(i32 signext %i)
|
|
br label %if.end
|
|
|
|
if.else: ; preds = %entry
|
|
%call3 = tail call signext i32 %Func2(i32 signext 0)
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.else, %if.then
|
|
%call1.pn = phi i32 [ %call1, %if.then ], [ %call3, %if.else ]
|
|
%Sum.0 = add nsw i32 %call1.pn, %call
|
|
ret i32 %Sum.0
|
|
}
|
|
|
|
; Check for multiple TOC saves with if then where neither is redundant.
|
|
define signext i32 @test5(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture readnone %Func2) {
|
|
entry:
|
|
; CHECK-LABEL: test5:
|
|
; CHECK: std 2, 24(1)
|
|
|
|
%tobool = icmp eq i32 %i, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
if.then: ; preds = %entry
|
|
%call = tail call signext i32 %Func(i32 signext %i)
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %entry, %if.then
|
|
%Sum.0 = phi i32 [ %call, %if.then ], [ 0, %entry ]
|
|
%call1 = tail call signext i32 %Func(i32 signext %i)
|
|
%add2 = add nsw i32 %call1, %Sum.0
|
|
ret i32 %add2
|
|
}
|
|
|
|
; Check for multiple TOC saves if there are dynamic allocations on the stack.
|
|
define signext i32 @test6(i32 signext %i, i32 (i32)* nocapture %Func, i32 (i32)* nocapture %Func2) {
|
|
entry:
|
|
; CHECK-LABEL: test6:
|
|
; CHECK: std 2, 24(1)
|
|
; CHECK: std 2, 24(1)
|
|
|
|
%conv = sext i32 %i to i64
|
|
%0 = alloca i8, i64 %conv, align 16
|
|
%1 = bitcast i8* %0 to i32*
|
|
%call = tail call signext i32 %Func(i32 signext %i)
|
|
call void @useAlloca(i32* nonnull %1, i32 signext %call)
|
|
%call1 = call signext i32 %Func2(i32 signext %i)
|
|
%add2 = add nsw i32 %call1, %call
|
|
ret i32 %add2
|
|
}
|
|
|
|
declare void @useAlloca(i32*, i32 signext)
|