load.ll
4.68 KB
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; RUN: llc -mattr=avr6,sram < %s -march=avr -verify-machineinstrs | FileCheck %s
define i8 @load8(i8* %x) {
; CHECK-LABEL: load8:
; CHECK: ld r24, {{[XYZ]}}
%1 = load i8, i8* %x
ret i8 %1
}
define i16 @load16(i16* %x) {
; CHECK-LABEL: load16:
; CHECK: ld r24, [[PTR:[YZ]]]
; CHECK: ldd r25, [[PTR]]+1
%1 = load i16, i16* %x
ret i16 %1
}
define i8 @load8disp(i8* %x) {
; CHECK-LABEL: load8disp:
; CHECK: ldd r24, {{[YZ]}}+63
%1 = getelementptr inbounds i8, i8* %x, i64 63
%2 = load i8, i8* %1
ret i8 %2
}
define i8 @load8nodisp(i8* %x) {
; CHECK-LABEL: load8nodisp:
; CHECK: movw r26, r24
; CHECK: subi r26, 192
; CHECK: sbci r27, 255
; CHECK: ld r24, {{[XYZ]}}
%1 = getelementptr inbounds i8, i8* %x, i64 64
%2 = load i8, i8* %1
ret i8 %2
}
define i16 @load16disp(i16* %x) {
; CHECK-LABEL: load16disp:
; CHECK: ldd r24, [[PTR:[YZ]]]+62
; CHECK: ldd r25, [[PTR]]+63
%1 = getelementptr inbounds i16, i16* %x, i64 31
%2 = load i16, i16* %1
ret i16 %2
}
define i16 @load16nodisp(i16* %x) {
; CHECK-LABEL: load16nodisp:
; CHECK: subi r24, 192
; CHECK: sbci r25, 255
; CHECK: movw r30, r24
; CHECK: ld r24, [[PTR:[YZ]]]
; CHECK: ldd r25, [[PTR]]+1
%1 = getelementptr inbounds i16, i16* %x, i64 32
%2 = load i16, i16* %1
ret i16 %2
}
define i8 @load8postinc(i8* %x, i8 %y) {
; CHECK-LABEL: load8postinc:
; CHECK: ld {{.*}}, {{[XYZ]}}+
entry:
%tobool6 = icmp eq i8 %y, 0
br i1 %tobool6, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%r.09 = phi i8 [ %add, %while.body ], [ 0, %entry ]
%y.addr.08 = phi i8 [ %dec, %while.body ], [ %y, %entry ]
%x.addr.07 = phi i8* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec = add i8 %y.addr.08, -1
%incdec.ptr = getelementptr inbounds i8, i8* %x.addr.07, i16 1
%0 = load i8, i8* %x.addr.07
%add = add i8 %0, %r.09
%tobool = icmp eq i8 %dec, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
%r.0.lcssa = phi i8 [ 0, %entry ], [ %add, %while.body ]
ret i8 %r.0.lcssa
}
define i16 @load16postinc(i16* %x, i16 %y) {
; CHECK-LABEL: load16postinc:
; CHECK: ld {{.*}}, {{[XYZ]}}+
; CHECK: ld {{.*}}, {{[XYZ]}}+
entry:
%tobool2 = icmp eq i16 %y, 0
br i1 %tobool2, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%r.05 = phi i16 [ %add, %while.body ], [ 0, %entry ]
%y.addr.04 = phi i16 [ %dec, %while.body ], [ %y, %entry ]
%x.addr.03 = phi i16* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec = add nsw i16 %y.addr.04, -1
%incdec.ptr = getelementptr inbounds i16, i16* %x.addr.03, i16 1
%0 = load i16, i16* %x.addr.03
%add = add nsw i16 %0, %r.05
%tobool = icmp eq i16 %dec, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
%r.0.lcssa = phi i16 [ 0, %entry ], [ %add, %while.body ]
ret i16 %r.0.lcssa
}
define i8 @load8predec(i8* %x, i8 %y) {
; CHECK-LABEL: load8predec:
; CHECK: ld {{.*}}, -{{[XYZ]}}
entry:
%tobool6 = icmp eq i8 %y, 0
br i1 %tobool6, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%r.09 = phi i8 [ %add, %while.body ], [ 0, %entry ]
%y.addr.08 = phi i8 [ %dec, %while.body ], [ %y, %entry ]
%x.addr.07 = phi i8* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec = add i8 %y.addr.08, -1
%incdec.ptr = getelementptr inbounds i8, i8* %x.addr.07, i16 -1
%0 = load i8, i8* %incdec.ptr
%add = add i8 %0, %r.09
%tobool = icmp eq i8 %dec, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
%r.0.lcssa = phi i8 [ 0, %entry ], [ %add, %while.body ]
ret i8 %r.0.lcssa
}
define i16 @load16predec(i16* %x, i16 %y) {
; CHECK-LABEL: load16predec:
; CHECK: ld {{.*}}, -{{[XYZ]}}
; CHECK: ld {{.*}}, -{{[XYZ]}}
entry:
%tobool2 = icmp eq i16 %y, 0
br i1 %tobool2, label %while.end, label %while.body
while.body: ; preds = %entry, %while.body
%r.05 = phi i16 [ %add, %while.body ], [ 0, %entry ]
%y.addr.04 = phi i16 [ %dec, %while.body ], [ %y, %entry ]
%x.addr.03 = phi i16* [ %incdec.ptr, %while.body ], [ %x, %entry ]
%dec = add nsw i16 %y.addr.04, -1
%incdec.ptr = getelementptr inbounds i16, i16* %x.addr.03, i16 -1
%0 = load i16, i16* %incdec.ptr
%add = add nsw i16 %0, %r.05
%tobool = icmp eq i16 %dec, 0
br i1 %tobool, label %while.end, label %while.body
while.end: ; preds = %while.body, %entry
%r.0.lcssa = phi i16 [ 0, %entry ], [ %add, %while.body ]
ret i16 %r.0.lcssa
}