mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
149 lines
6.3 KiB
LLVM
149 lines
6.3 KiB
LLVM
; RUN: llc < %s -march=x86-64 -asm-verbose=false -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
|
|
|
|
; Currently, floating-point selects are lowered to CFG triangles.
|
|
; This means that one side of the select is always unconditionally
|
|
; evaluated, however with MachineSink we can sink the other side so
|
|
; that it's conditionally evaluated.
|
|
|
|
; CHECK: foo:
|
|
; CHECK: divsd
|
|
; CHECK-NEXT: testb $1, %dil
|
|
; CHECK-NEXT: jne
|
|
; CHECK-NEXT: divsd
|
|
|
|
define double @foo(double %x, double %y, i1 %c) nounwind {
|
|
%a = fdiv double %x, 3.2
|
|
%b = fdiv double %y, 3.3
|
|
%z = select i1 %c, double %a, double %b
|
|
ret double %z
|
|
}
|
|
|
|
; Hoist floating-point constant-pool loads out of loops.
|
|
|
|
; CHECK: bar:
|
|
; CHECK: movsd
|
|
; CHECK: align
|
|
define void @bar(double* nocapture %p, i64 %n) nounwind {
|
|
entry:
|
|
%0 = icmp sgt i64 %n, 0
|
|
br i1 %0, label %bb, label %return
|
|
|
|
bb:
|
|
%i.03 = phi i64 [ 0, %entry ], [ %3, %bb ]
|
|
%scevgep = getelementptr double* %p, i64 %i.03
|
|
%1 = load double* %scevgep, align 8
|
|
%2 = fdiv double 3.200000e+00, %1
|
|
store double %2, double* %scevgep, align 8
|
|
%3 = add nsw i64 %i.03, 1
|
|
%exitcond = icmp eq i64 %3, %n
|
|
br i1 %exitcond, label %return, label %bb
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; Sink instructions with dead EFLAGS defs.
|
|
|
|
; CHECK: zzz:
|
|
; CHECK: je
|
|
; CHECK-NEXT: orb
|
|
|
|
define zeroext i8 @zzz(i8 zeroext %a, i8 zeroext %b) nounwind readnone {
|
|
entry:
|
|
%tmp = zext i8 %a to i32 ; <i32> [#uses=1]
|
|
%tmp2 = icmp eq i8 %a, 0 ; <i1> [#uses=1]
|
|
%tmp3 = or i8 %b, -128 ; <i8> [#uses=1]
|
|
%tmp4 = and i8 %b, 127 ; <i8> [#uses=1]
|
|
%b_addr.0 = select i1 %tmp2, i8 %tmp4, i8 %tmp3 ; <i8> [#uses=1]
|
|
ret i8 %b_addr.0
|
|
}
|
|
|
|
; Codegen should hoist and CSE these constants.
|
|
|
|
; CHECK: vv:
|
|
; CHECK: LCPI4_0(%rip), %xmm0
|
|
; CHECK: LCPI4_1(%rip), %xmm1
|
|
; CHECK: LCPI4_2(%rip), %xmm2
|
|
; CHECK: align
|
|
; CHECK-NOT: LCPI
|
|
; CHECK: ret
|
|
|
|
@_minusZero.6007 = internal constant <4 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00> ; <<4 x float>*> [#uses=0]
|
|
@twoTo23.6008 = internal constant <4 x float> <float 8.388608e+06, float 8.388608e+06, float 8.388608e+06, float 8.388608e+06> ; <<4 x float>*> [#uses=0]
|
|
|
|
define void @vv(float* %y, float* %x, i32* %n) nounwind ssp {
|
|
entry:
|
|
br label %bb60
|
|
|
|
bb: ; preds = %bb60
|
|
%0 = bitcast float* %x_addr.0 to <4 x float>* ; <<4 x float>*> [#uses=1]
|
|
%1 = load <4 x float>* %0, align 16 ; <<4 x float>> [#uses=4]
|
|
%tmp20 = bitcast <4 x float> %1 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
|
%tmp22 = and <4 x i32> %tmp20, <i32 2147483647, i32 2147483647, i32 2147483647, i32 2147483647> ; <<4 x i32>> [#uses=1]
|
|
%tmp23 = bitcast <4 x i32> %tmp22 to <4 x float> ; <<4 x float>> [#uses=1]
|
|
%tmp25 = bitcast <4 x float> %1 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
|
%tmp27 = and <4 x i32> %tmp25, <i32 -2147483648, i32 -2147483648, i32 -2147483648, i32 -2147483648> ; <<4 x i32>> [#uses=2]
|
|
%tmp30 = call <4 x float> @llvm.x86.sse.cmp.ps(<4 x float> %tmp23, <4 x float> <float 8.388608e+06, float 8.388608e+06, float 8.388608e+06, float 8.388608e+06>, i8 5) ; <<4 x float>> [#uses=1]
|
|
%tmp34 = bitcast <4 x float> %tmp30 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
|
%tmp36 = xor <4 x i32> %tmp34, <i32 -1, i32 -1, i32 -1, i32 -1> ; <<4 x i32>> [#uses=1]
|
|
%tmp37 = and <4 x i32> %tmp36, <i32 1258291200, i32 1258291200, i32 1258291200, i32 1258291200> ; <<4 x i32>> [#uses=1]
|
|
%tmp42 = or <4 x i32> %tmp37, %tmp27 ; <<4 x i32>> [#uses=1]
|
|
%tmp43 = bitcast <4 x i32> %tmp42 to <4 x float> ; <<4 x float>> [#uses=2]
|
|
%tmp45 = fadd <4 x float> %1, %tmp43 ; <<4 x float>> [#uses=1]
|
|
%tmp47 = fsub <4 x float> %tmp45, %tmp43 ; <<4 x float>> [#uses=2]
|
|
%tmp49 = call <4 x float> @llvm.x86.sse.cmp.ps(<4 x float> %1, <4 x float> %tmp47, i8 1) ; <<4 x float>> [#uses=1]
|
|
%2 = bitcast <4 x float> %tmp49 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
|
%3 = call <4 x float> @llvm.x86.sse2.cvtdq2ps(<4 x i32> %2) nounwind readnone ; <<4 x float>> [#uses=1]
|
|
%tmp53 = fadd <4 x float> %tmp47, %3 ; <<4 x float>> [#uses=1]
|
|
%tmp55 = bitcast <4 x float> %tmp53 to <4 x i32> ; <<4 x i32>> [#uses=1]
|
|
%tmp57 = or <4 x i32> %tmp55, %tmp27 ; <<4 x i32>> [#uses=1]
|
|
%tmp58 = bitcast <4 x i32> %tmp57 to <4 x float> ; <<4 x float>> [#uses=1]
|
|
%4 = bitcast float* %y_addr.0 to <4 x float>* ; <<4 x float>*> [#uses=1]
|
|
store <4 x float> %tmp58, <4 x float>* %4, align 16
|
|
%5 = getelementptr float* %x_addr.0, i64 4 ; <float*> [#uses=1]
|
|
%6 = getelementptr float* %y_addr.0, i64 4 ; <float*> [#uses=1]
|
|
%7 = add i32 %i.0, 4 ; <i32> [#uses=1]
|
|
br label %bb60
|
|
|
|
bb60: ; preds = %bb, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %7, %bb ] ; <i32> [#uses=2]
|
|
%x_addr.0 = phi float* [ %x, %entry ], [ %5, %bb ] ; <float*> [#uses=2]
|
|
%y_addr.0 = phi float* [ %y, %entry ], [ %6, %bb ] ; <float*> [#uses=2]
|
|
%8 = load i32* %n, align 4 ; <i32> [#uses=1]
|
|
%9 = icmp sgt i32 %8, %i.0 ; <i1> [#uses=1]
|
|
br i1 %9, label %bb, label %return
|
|
|
|
return: ; preds = %bb60
|
|
ret void
|
|
}
|
|
|
|
declare <4 x float> @llvm.x86.sse.cmp.ps(<4 x float>, <4 x float>, i8) nounwind readnone
|
|
|
|
declare <4 x float> @llvm.x86.sse2.cvtdq2ps(<4 x i32>) nounwind readnone
|
|
|
|
; CodeGen should use the correct register class when extracting
|
|
; a load from a zero-extending load for hoisting.
|
|
|
|
; CHECK: default_get_pch_validity:
|
|
; CHECK: movl cl_options_count(%rip), %ecx
|
|
|
|
@cl_options_count = external constant i32 ; <i32*> [#uses=2]
|
|
|
|
define void @default_get_pch_validity() nounwind {
|
|
entry:
|
|
%tmp4 = load i32* @cl_options_count, align 4 ; <i32> [#uses=1]
|
|
%tmp5 = icmp eq i32 %tmp4, 0 ; <i1> [#uses=1]
|
|
br i1 %tmp5, label %bb6, label %bb2
|
|
|
|
bb2: ; preds = %bb2, %entry
|
|
%i.019 = phi i64 [ 0, %entry ], [ %tmp25, %bb2 ] ; <i64> [#uses=1]
|
|
%tmp25 = add i64 %i.019, 1 ; <i64> [#uses=2]
|
|
%tmp11 = load i32* @cl_options_count, align 4 ; <i32> [#uses=1]
|
|
%tmp12 = zext i32 %tmp11 to i64 ; <i64> [#uses=1]
|
|
%tmp13 = icmp ugt i64 %tmp12, %tmp25 ; <i1> [#uses=1]
|
|
br i1 %tmp13, label %bb2, label %bb6
|
|
|
|
bb6: ; preds = %bb2, %entry
|
|
ret void
|
|
}
|