llvm-project/llvm/test/CodeGen/PowerPC/remove-redundant-toc-saves.ll
Kai Nacke 5403c59c60 [PPC] Opaque pointer migration, part 2.
The LIT test cases were migrated with the script provided by
Nikita Popov. Due to the size of the change it is split into
several parts.

Reviewed By: nemanja, nikic

Differential Revision: https://reviews.llvm.org/D135474
2022-10-11 17:24:06 +00:00

165 lines
5.0 KiB
LLVM

; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-ibm-aix-xcoff < %s | FileCheck %s --check-prefix=AIX64
; RUN: llc -verify-machineinstrs -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s --check-prefix=AIX32
define signext i32 @test1(i32 signext %i, ptr nocapture %Func, ptr nocapture %Func2) {
entry:
; CHECK-LABEL: test1:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
; AIX64-LABEL: test1:
; AIX64: std 2, 40(1)
; AIX64-NOT: std 2, 40(1)
; AIX32-LABEL: test1:
; AIX32: stw 2, 20(1)
; AIX32-NOT: std 2, 20(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, ptr nocapture %Func, ptr nocapture %Func2) {
entry:
; CHECK-LABEL: test2:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
; AIX64-LABEL: test2:
; AIX64: std 2, 40(1)
; AIX64-NOT: std 2, 40(1)
; AIX32-LABEL: test2:
; AIX32: stw 2, 20(1)
; AIX32-NOT: std 2, 20(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, ptr nocapture %Func, ptr nocapture %Func2) {
; CHECK-LABEL: test3:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
; AIX64-LABEL: test3:
; AIX64-COUNT-3: std 2, 40(1)
; AIX32-LABEL: test3:
; AIX32-COUNT-3: stw 2, 20(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, ptr nocapture %Func, ptr nocapture %Func2) {
; CHECK-LABEL: test4:
; CHECK: std 2, 24(1)
; CHECK-NOT: std 2, 24(1)
; AIX64-LABEL: test4:
; AIX64: std 2, 40(1)
; AIX64-NOT: std 2, 40(1)
; AIX32-LABEL: test4:
; AIX32: stw 2, 20(1)
; AIX32-NOT: std 2, 20(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, ptr nocapture %Func, ptr nocapture readnone %Func2) {
entry:
; CHECK-LABEL: test5:
; CHECK: std 2, 24(1)
; AIX64-LABEL: test5:
; AIX64: std 2, 40(1)
; AIX32-LABEL: test5:
; AIX32: stw 2, 20(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, ptr nocapture %Func, ptr nocapture %Func2) {
entry:
; CHECK-LABEL: test6:
; CHECK: std 2, 24(1)
; CHECK: std 2, 24(1)
; AIX64-LABEL: test6:
; AIX64: std 2, 40(1)
; AIX64: std 2, 40(1)
; AIX32-LABEL: test6:
; AIX32: stw 2, 20(1)
; AIX32: stw 2, 20(1)
%conv = sext i32 %i to i64
%0 = alloca i8, i64 %conv, align 16
%call = tail call signext i32 %Func(i32 signext %i)
call void @useAlloca(ptr nonnull %0, i32 signext %call)
%call1 = call signext i32 %Func2(i32 signext %i)
%add2 = add nsw i32 %call1, %call
ret i32 %add2
}
declare void @useAlloca(ptr, i32 signext)