xref: /aosp_15_r20/external/llvm/test/CodeGen/PowerPC/fast-isel-call.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)

; FIXME: FastISel currently returns false if it hits code that uses VSX
; registers and with -fast-isel-abort=1 turned on the test case will then fail.
; When fastisel better supports VSX fix up this test case.
;
; RUN: llc < %s -O0 -verify-machineinstrs -mattr=-vsx -fast-isel-abort=1 -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64

define i32 @t1(i8 signext %a) nounwind {
  %1 = sext i8 %a to i32
  ret i32 %1
}

define i32 @t2(i8 zeroext %a) nounwind {
  %1 = zext i8 %a to i32
  ret i32 %1
}

define i32 @t3(i16 signext %a) nounwind {
  %1 = sext i16 %a to i32
  ret i32 %1
}

define i32 @t4(i16 zeroext %a) nounwind {
  %1 = zext i16 %a to i32
  ret i32 %1
}

define void @foo(i8 %a, i16 %b) nounwind {
; ELF64: foo
  %1 = call i32 @t1(i8 signext %a)
; ELF64: extsb
  %2 = call i32 @t2(i8 zeroext %a)
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
  %3 = call i32 @t3(i16 signext %b)
; ELF64: extsh
  %4 = call i32 @t4(i16 zeroext %b)
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48

;; A few test to check materialization
  %5 = call i32 @t2(i8 zeroext 255)
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
  %6 = call i32 @t4(i16 zeroext 65535)
; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48
  ret void
}

define void @foo2() nounwind {
  %1 = call signext i16 @t5()
  %2 = call zeroext i16 @t6()
  %3 = call signext i8 @t7()
  %4 = call zeroext i8 @t8()
  ret void
}

declare signext i16 @t5();
declare zeroext i16 @t6();
declare signext i8 @t7();
declare zeroext i8 @t8();

define i32 @t10(i32 %argc, i8** nocapture %argv) nounwind {
entry:
; ELF64: t10
  %call = call i32 @bar(i8 zeroext 0, i8 zeroext -8, i8 zeroext -69, i8 zeroext 28, i8 zeroext 40, i8 zeroext -70)
; ELF64: li 3, 0
; ELF64: li 4, -8
; ELF64: li 5, -69
; ELF64: li 6, 28
; ELF64: li 7, 40
; ELF64: li 8, -70
; ELF64: rldicl 3, 3, 0, 56
; ELF64: rldicl 4, 4, 0, 56
; ELF64: rldicl 5, 5, 0, 56
; ELF64: rldicl 6, 6, 0, 56
; ELF64: rldicl 7, 7, 0, 56
; ELF64: rldicl 8, 8, 0, 56
  ret i32 0
}

declare i32 @bar(i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext)

define i32 @bar0(i32 %i) nounwind {
  ret i32 0
}

; Function pointers are not yet implemented.
;define void @foo3() uwtable {
;  %fptr = alloca i32 (i32)*, align 8
;  store i32 (i32)* @bar0, i32 (i32)** %fptr, align 8
;  %1 = load i32 (i32)*, i32 (i32)** %fptr, align 8
;  %call = call i32 %1(i32 0)
;  ret void
;}

; Intrinsic calls not yet implemented, and udiv isn't one for PPC anyway.
;define i32 @LibCall(i32 %a, i32 %b) {
;entry:
;        %tmp1 = udiv i32 %a, %b         ; <i32> [#uses=1]
;        ret i32 %tmp1
;}

declare void @float_foo(float %f)

define void @float_const() nounwind {
entry:
; ELF64: float_const
  call void @float_foo(float 0x401C666660000000)
; ELF64: addis [[REG:[0-9]+]], 2, .LCPI[[SUF:[0-9_]+]]@toc@ha
; ELF64: lfs 1, .LCPI[[SUF]]@toc@l([[REG]])
  ret void
}

define void @float_reg(float %dummy, float %f) nounwind {
entry:
; ELF64: float_reg
  call void @float_foo(float %f)
; ELF64: fmr 1, 2
  ret void
}

declare void @double_foo(double %d)

define void @double_const() nounwind {
entry:
; ELF64: double_const
  call void @double_foo(double 0x1397723CCABD0000401C666660000000)
; ELF64: addis [[REG2:[0-9]+]], 2, .LCPI[[SUF2:[0-9_]+]]@toc@ha
; ELF64: lfd 1, .LCPI[[SUF2]]@toc@l([[REG2]])
  ret void
}

define void @double_reg(double %dummy, double %d) nounwind {
entry:
; ELF64: double_reg
  call void @double_foo(double %d)
; ELF64: fmr 1, 2
  ret void
}