Files
clang-p2996/llvm/test/CodeGen/PowerPC/sjlj.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

179 lines
5.0 KiB
LLVM

; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -verify-machineinstrs | FileCheck %s
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=a2 -verify-machineinstrs | FileCheck -check-prefix=CHECK-NOAV %s
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
%struct.__jmp_buf_tag = type { [64 x i64], i32, %struct.__sigset_t, [8 x i8] }
%struct.__sigset_t = type { [16 x i64] }
@env_sigill = internal global [1 x %struct.__jmp_buf_tag] zeroinitializer, align 16
@cond = external global i8, align 1
define void @foo() #0 {
entry:
call void @llvm.eh.sjlj.longjmp(ptr @env_sigill)
unreachable
; CHECK: @foo
; CHECK: addis [[REG:[0-9]+]], 2, env_sigill@toc@ha
; CHECK: addi [[REG]], [[REG]], env_sigill@toc@l
; CHECK: ld 31, 0([[REG]])
; CHECK: ld [[REG2:[0-9]+]], 8([[REG]])
; CHECK-DAG: ld 1, 16([[REG]])
; CHECK-DAG: mtctr [[REG2]]
; CHECK-DAG: ld 30, 32([[REG]])
; CHECK-DAG: ld 2, 24([[REG]])
; CHECK: bctr
return: ; No predecessors!
ret void
}
declare void @llvm.eh.sjlj.longjmp(ptr) #1
define signext i32 @main() #0 {
entry:
%retval = alloca i32, align 4
store i32 0, ptr %retval
%0 = call ptr @llvm.frameaddress(i32 0)
store ptr %0, ptr @env_sigill
%1 = call ptr @llvm.stacksave()
store ptr %1, ptr getelementptr (ptr, ptr @env_sigill, i32 2)
%2 = call i32 @llvm.eh.sjlj.setjmp(ptr @env_sigill)
%tobool = icmp ne i32 %2, 0
br i1 %tobool, label %if.then, label %if.else
if.then: ; preds = %entry
store i32 1, ptr %retval
br label %return
if.else: ; preds = %entry
call void @foo()
br label %if.end
if.end: ; preds = %if.else
store i32 0, ptr %retval
br label %return
return: ; preds = %if.end, %if.then
%3 = load i32, ptr %retval
ret i32 %3
; CHECK-LABEL: main:
; CHECK: std
; Make sure that we're not saving VRSAVE:
; CHECK-NOT: mfspr
; CHECK-DAG: stfd
; CHECK-DAG: stxvd2x
; CHECK-DAG: addis [[REG:[0-9]+]], 2, env_sigill@toc@ha
; CHECK-DAG: std 31, env_sigill@toc@l([[REG]])
; CHECK-DAG: addi [[REGA:[0-9]+]], [[REG]], env_sigill@toc@l
; CHECK-DAG: std [[REGA]], [[OFF:[0-9]+]](31) # 8-byte Folded Spill
; CHECK-DAG: std 1, 16([[REGA]])
; CHECK-DAG: std 2, 24([[REGA]])
; CHECK: bcl 20, 31, .LBB1_3
; CHECK: li 3, 1
; CHECK: #EH_SjLj_Setup .LBB1_3
; CHECK: # %bb.1:
; CHECK: .LBB1_3:
; CHECK: ld [[REG2:[0-9]+]], [[OFF]](31) # 8-byte Folded Reload
; CHECK: mflr [[REGL:[0-9]+]]
; CHECK: std [[REGL]], 8([[REG2]])
; CHECK: li 3, 0
; CHECK: .LBB1_5:
; CHECK-DAG: lfd
; CHECK-DAG: lxvd2x
; CHECK: ld
; CHECK: blr
; CHECK-NOAV-LABEL: main:
; CHECK-NOAV-NOT: stxvd2x
; CHECK-NOAV: bcl
; CHECK-NOAV: mflr
; CHECK-NOAV: bl foo
; CHECK-NOAV-NOT: lxvd2x
; CHECK-NOAV: blr
}
define signext i32 @main2() #0 {
entry:
%a = alloca i8, align 64
call void @bar(ptr %a)
%retval = alloca i32, align 4
store i32 0, ptr %retval
%0 = call ptr @llvm.frameaddress(i32 0)
store ptr %0, ptr @env_sigill
%1 = call ptr @llvm.stacksave()
store ptr %1, ptr getelementptr (ptr, ptr @env_sigill, i32 2)
%2 = call i32 @llvm.eh.sjlj.setjmp(ptr @env_sigill)
%tobool = icmp ne i32 %2, 0
br i1 %tobool, label %if.then, label %if.else
if.then: ; preds = %entry
store i32 1, ptr %retval
br label %return
if.else: ; preds = %entry
call void @foo()
br label %if.end
if.end: ; preds = %if.else
store i32 0, ptr %retval
br label %return
return: ; preds = %if.end, %if.then
%3 = load i32, ptr %retval
ret i32 %3
; CHECK-LABEL: main2:
; CHECK: addis [[REG:[0-9]+]], 2, env_sigill@toc@ha
; CHECK-DAG: std 31, env_sigill@toc@l([[REG]])
; CHECK-DAG: addi [[REGB:[0-9]+]], [[REG]], env_sigill@toc@l
; CHECK-DAG: std [[REGB]], [[OFF:[0-9]+]](31) # 8-byte Folded Spill
; CHECK-DAG: std 1, 16([[REGB]])
; CHECK-DAG: std 2, 24([[REGB]])
; CHECK-DAG: std 30, 32([[REGB]])
; CHECK: bcl 20, 31,
; CHECK: blr
}
define void @test_sjlj_setjmp() #0 {
entry:
%0 = load i8, ptr @cond, align 1
%tobool = trunc i8 %0 to i1
br i1 %tobool, label %return, label %end
end:
%1 = call i32 @llvm.eh.sjlj.setjmp(ptr @env_sigill)
br label %return
return:
ret void
; CHECK-LABEL: test_sjlj_setjmp:
; intrinsic llvm.eh.sjlj.setjmp does not call builtin function _setjmp.
; CHECK-NOT: bl _setjmp
}
declare void @bar(ptr) #3
declare ptr @llvm.frameaddress(i32) #2
declare ptr @llvm.stacksave() #3
declare i32 @llvm.eh.sjlj.setjmp(ptr) #3
attributes #0 = { nounwind "less-precise-fpmad"="false" "frame-pointer"="non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { noreturn nounwind }
attributes #2 = { nounwind readnone }
attributes #3 = { nounwind }