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https://github.com/c64scene-ar/llvm-6502.git
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[PowerPC] Call support for fast-isel.
This patch adds fast-isel support for calls (but not intrinsic calls or varargs calls). It also removes a badly-formed assert. There are some new tests just for calls, and also for folding loads into arguments on calls to avoid extra extends. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189701 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Schmidt
@@ -0,0 +1,132 @@
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; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
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define i32 @t1(i8 signext %a) nounwind {
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%1 = sext i8 %a to i32
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ret i32 %1
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}
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define i32 @t2(i8 zeroext %a) nounwind {
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%1 = zext i8 %a to i32
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ret i32 %1
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}
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define i32 @t3(i16 signext %a) nounwind {
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%1 = sext i16 %a to i32
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ret i32 %1
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}
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define i32 @t4(i16 zeroext %a) nounwind {
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%1 = zext i16 %a to i32
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ret i32 %1
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}
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define void @foo(i8 %a, i16 %b) nounwind {
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; ELF64: foo
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%1 = call i32 @t1(i8 signext %a)
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; ELF64: extsb
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%2 = call i32 @t2(i8 zeroext %a)
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; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
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%3 = call i32 @t3(i16 signext %b)
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; ELF64: extsh
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%4 = call i32 @t4(i16 zeroext %b)
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; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48
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;; A few test to check materialization
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%5 = call i32 @t2(i8 zeroext 255)
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; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 56
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%6 = call i32 @t4(i16 zeroext 65535)
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; ELF64: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 48
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ret void
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}
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define void @foo2() nounwind {
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%1 = call signext i16 @t5()
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%2 = call zeroext i16 @t6()
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%3 = call signext i8 @t7()
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%4 = call zeroext i8 @t8()
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ret void
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}
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declare signext i16 @t5();
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declare zeroext i16 @t6();
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declare signext i8 @t7();
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declare zeroext i8 @t8();
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define i32 @t10(i32 %argc, i8** nocapture %argv) {
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entry:
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; ELF64: t10
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%call = call i32 @bar(i8 zeroext 0, i8 zeroext -8, i8 zeroext -69, i8 zeroext 28, i8 zeroext 40, i8 zeroext -70)
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; ELF64: li 3, 0
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; ELF64: li 4, 248
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; ELF64: li 5, 187
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; ELF64: li 6, 28
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; ELF64: li 7, 40
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; ELF64: li 8, 186
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; ELF64: rldicl 3, 3, 0, 56
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; ELF64: rldicl 4, 4, 0, 56
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; ELF64: rldicl 5, 5, 0, 56
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; ELF64: rldicl 6, 6, 0, 56
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; ELF64: rldicl 7, 7, 0, 56
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; ELF64: rldicl 8, 8, 0, 56
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ret i32 0
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}
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declare i32 @bar(i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext)
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define i32 @bar0(i32 %i) nounwind {
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ret i32 0
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}
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; Function pointers are not yet implemented.
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;define void @foo3() uwtable {
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; %fptr = alloca i32 (i32)*, align 8
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; store i32 (i32)* @bar0, i32 (i32)** %fptr, align 8
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; %1 = load i32 (i32)** %fptr, align 8
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; %call = call i32 %1(i32 0)
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; ret void
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;}
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; Intrinsic calls not yet implemented, and udiv isn't one for PPC anyway.
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;define i32 @LibCall(i32 %a, i32 %b) {
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;entry:
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; %tmp1 = udiv i32 %a, %b ; <i32> [#uses=1]
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; ret i32 %tmp1
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;}
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declare void @float_foo(float %f) ssp
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define void @float_const() ssp {
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entry:
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; ELF64: float_const
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call void @float_foo(float 0x401C666660000000)
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; ELF64: addis [[REG:[0-9]+]], 2, .LCPI[[SUF:[0-9_]+]]@toc@ha
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; ELF64: lfs 1, .LCPI[[SUF]]@toc@l([[REG]])
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ret void
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}
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define void @float_reg(float %dummy, float %f) ssp {
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entry:
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; ELF64: float_reg
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call void @float_foo(float %f)
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; ELF64: fmr 1, 2
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ret void
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}
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declare void @double_foo(double %d) ssp
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define void @double_const() ssp {
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entry:
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; ELF64: double_const
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call void @double_foo(double 0x1397723CCABD0000401C666660000000)
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; ELF64: addis [[REG2:[0-9]+]], 2, .LCPI[[SUF2:[0-9_]+]]@toc@ha
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; ELF64: lfd 1, .LCPI[[SUF2]]@toc@l([[REG2]])
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ret void
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}
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define void @double_reg(double %dummy, double %d) ssp {
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entry:
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; ELF64: double_reg
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call void @double_foo(double %d)
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; ELF64: fmr 1, 2
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ret void
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}
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@@ -4,6 +4,40 @@
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@b = global i16 2, align 2
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@c = global i32 4, align 4
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define void @t1() nounwind uwtable ssp {
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; ELF64: t1
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%1 = load i8* @a, align 1
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call void @foo1(i8 zeroext %1)
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; ELF64: lbz
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; ELF64-NOT: rldicl
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; ELF64-NOT: rlwinm
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ret void
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}
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define void @t2() nounwind uwtable ssp {
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; ELF64: t2
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%1 = load i16* @b, align 2
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call void @foo2(i16 zeroext %1)
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; ELF64: lhz
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; ELF64-NOT: rldicl
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; ELF64-NOT: rlwinm
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ret void
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}
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define void @t2a() nounwind uwtable ssp {
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; ELF64: t2a
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%1 = load i32* @c, align 4
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call void @foo3(i32 zeroext %1)
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; ELF64: lwz
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; ELF64-NOT: rldicl
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; ELF64-NOT: rlwinm
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ret void
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}
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declare void @foo1(i8 zeroext)
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declare void @foo2(i16 zeroext)
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declare void @foo3(i32 zeroext)
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define i32 @t3() nounwind uwtable ssp {
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; ELF64: t3
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%1 = load i8* @a, align 1
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