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llvm-6502/test/CodeGen/SystemZ/asm-18.ll
Ulrich Weigand 81d2500685 Use the integrated assembler as default on SystemZ 
This was already done in clang, this commit now uses the integrated
assembler as default when using LLVM tools directly.

A number of test cases deliberately using an invalid instruction in
inline asm now have to use -no-integrated-as.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225820 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-13 19:45:16 +00:00

746 lines
24 KiB
LLVM
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; Test high-word operations, using "h" constraints to force a high
; register and "r" constraints to force a low register.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 -no-integrated-as | FileCheck %s
; Test loads and stores involving mixtures of high and low registers.
define void @f1(i32 *%ptr1, i32 *%ptr2) {
; CHECK-LABEL: f1:
; CHECK-DAG: lfh [[REG1:%r[0-5]]], 0(%r2)
; CHECK-DAG: l [[REG2:%r[0-5]]], 0(%r3)
; CHECK-DAG: lfh [[REG3:%r[0-5]]], 4096(%r2)
; CHECK-DAG: ly [[REG4:%r[0-5]]], 524284(%r3)
; CHECK: blah [[REG1]], [[REG2]], [[REG3]], [[REG4]]
; CHECK-DAG: stfh [[REG1]], 0(%r2)
; CHECK-DAG: st [[REG2]], 0(%r3)
; CHECK-DAG: stfh [[REG3]], 4096(%r2)
; CHECK-DAG: sty [[REG4]], 524284(%r3)
; CHECK: br %r14
%ptr3 = getelementptr i32 *%ptr1, i64 1024
%ptr4 = getelementptr i32 *%ptr2, i64 131071
%old1 = load i32 *%ptr1
%old2 = load i32 *%ptr2
%old3 = load i32 *%ptr3
%old4 = load i32 *%ptr4
%res = call { i32, i32, i32, i32 } asm "blah $0, $1, $2, $3",
"=h,=r,=h,=r,0,1,2,3"(i32 %old1, i32 %old2, i32 %old3, i32 %old4)
%new1 = extractvalue { i32, i32, i32, i32 } %res, 0
%new2 = extractvalue { i32, i32, i32, i32 } %res, 1
%new3 = extractvalue { i32, i32, i32, i32 } %res, 2
%new4 = extractvalue { i32, i32, i32, i32 } %res, 3
store i32 %new1, i32 *%ptr1
store i32 %new2, i32 *%ptr2
store i32 %new3, i32 *%ptr3
store i32 %new4, i32 *%ptr4
ret void
}
; Test moves involving mixtures of high and low registers.
define i32 @f2(i32 %old) {
; CHECK-LABEL: f2:
; CHECK-DAG: risbhg [[REG1:%r[0-5]]], %r2, 0, 159, 32
; CHECK-DAG: lr %r3, %r2
; CHECK: stepa [[REG1]], %r2, %r3
; CHECK: risbhg {{%r[0-5]}}, [[REG1]], 0, 159, 0
; CHECK: stepb [[REG2:%r[0-5]]]
; CHECK: risblg %r2, [[REG2]], 0, 159, 32
; CHECK: br %r14
%tmp = call i32 asm "stepa $1, $2, $3",
"=h,0,{r2},{r3}"(i32 %old, i32 %old, i32 %old)
%new = call i32 asm "stepb $1, $2", "=&h,0,h"(i32 %tmp, i32 %tmp)
ret i32 %new
}
; Test sign-extending 8-bit loads into mixtures of high and low registers.
define void @f3(i8 *%ptr1, i8 *%ptr2) {
; CHECK-LABEL: f3:
; CHECK-DAG: lbh [[REG1:%r[0-5]]], 0(%r2)
; CHECK-DAG: lb [[REG2:%r[0-5]]], 0(%r3)
; CHECK-DAG: lbh [[REG3:%r[0-5]]], 4096(%r2)
; CHECK-DAG: lb [[REG4:%r[0-5]]], 524287(%r3)
; CHECK: blah [[REG1]], [[REG2]]
; CHECK: br %r14
%ptr3 = getelementptr i8 *%ptr1, i64 4096
%ptr4 = getelementptr i8 *%ptr2, i64 524287
%val1 = load i8 *%ptr1
%val2 = load i8 *%ptr2
%val3 = load i8 *%ptr3
%val4 = load i8 *%ptr4
%ext1 = sext i8 %val1 to i32
%ext2 = sext i8 %val2 to i32
%ext3 = sext i8 %val3 to i32
%ext4 = sext i8 %val4 to i32
call void asm sideeffect "blah $0, $1, $2, $3",
"h,r,h,r"(i32 %ext1, i32 %ext2, i32 %ext3, i32 %ext4)
ret void
}
; Test sign-extending 16-bit loads into mixtures of high and low registers.
define void @f4(i16 *%ptr1, i16 *%ptr2) {
; CHECK-LABEL: f4:
; CHECK-DAG: lhh [[REG1:%r[0-5]]], 0(%r2)
; CHECK-DAG: lh [[REG2:%r[0-5]]], 0(%r3)
; CHECK-DAG: lhh [[REG3:%r[0-5]]], 4096(%r2)
; CHECK-DAG: lhy [[REG4:%r[0-5]]], 524286(%r3)
; CHECK: blah [[REG1]], [[REG2]]
; CHECK: br %r14
%ptr3 = getelementptr i16 *%ptr1, i64 2048
%ptr4 = getelementptr i16 *%ptr2, i64 262143
%val1 = load i16 *%ptr1
%val2 = load i16 *%ptr2
%val3 = load i16 *%ptr3
%val4 = load i16 *%ptr4
%ext1 = sext i16 %val1 to i32
%ext2 = sext i16 %val2 to i32
%ext3 = sext i16 %val3 to i32
%ext4 = sext i16 %val4 to i32
call void asm sideeffect "blah $0, $1, $2, $3",
"h,r,h,r"(i32 %ext1, i32 %ext2, i32 %ext3, i32 %ext4)
ret void
}
; Test zero-extending 8-bit loads into mixtures of high and low registers.
define void @f5(i8 *%ptr1, i8 *%ptr2) {
; CHECK-LABEL: f5:
; CHECK-DAG: llch [[REG1:%r[0-5]]], 0(%r2)
; CHECK-DAG: llc [[REG2:%r[0-5]]], 0(%r3)
; CHECK-DAG: llch [[REG3:%r[0-5]]], 4096(%r2)
; CHECK-DAG: llc [[REG4:%r[0-5]]], 524287(%r3)
; CHECK: blah [[REG1]], [[REG2]]
; CHECK: br %r14
%ptr3 = getelementptr i8 *%ptr1, i64 4096
%ptr4 = getelementptr i8 *%ptr2, i64 524287
%val1 = load i8 *%ptr1
%val2 = load i8 *%ptr2
%val3 = load i8 *%ptr3
%val4 = load i8 *%ptr4
%ext1 = zext i8 %val1 to i32
%ext2 = zext i8 %val2 to i32
%ext3 = zext i8 %val3 to i32
%ext4 = zext i8 %val4 to i32
call void asm sideeffect "blah $0, $1, $2, $3",
"h,r,h,r"(i32 %ext1, i32 %ext2, i32 %ext3, i32 %ext4)
ret void
}
; Test zero-extending 16-bit loads into mixtures of high and low registers.
define void @f6(i16 *%ptr1, i16 *%ptr2) {
; CHECK-LABEL: f6:
; CHECK-DAG: llhh [[REG1:%r[0-5]]], 0(%r2)
; CHECK-DAG: llh [[REG2:%r[0-5]]], 0(%r3)
; CHECK-DAG: llhh [[REG3:%r[0-5]]], 4096(%r2)
; CHECK-DAG: llh [[REG4:%r[0-5]]], 524286(%r3)
; CHECK: blah [[REG1]], [[REG2]]
; CHECK: br %r14
%ptr3 = getelementptr i16 *%ptr1, i64 2048
%ptr4 = getelementptr i16 *%ptr2, i64 262143
%val1 = load i16 *%ptr1
%val2 = load i16 *%ptr2
%val3 = load i16 *%ptr3
%val4 = load i16 *%ptr4
%ext1 = zext i16 %val1 to i32
%ext2 = zext i16 %val2 to i32
%ext3 = zext i16 %val3 to i32
%ext4 = zext i16 %val4 to i32
call void asm sideeffect "blah $0, $1, $2, $3",
"h,r,h,r"(i32 %ext1, i32 %ext2, i32 %ext3, i32 %ext4)
ret void
}
; Test truncating stores of high and low registers into 8-bit memory.
define void @f7(i8 *%ptr1, i8 *%ptr2) {
; CHECK-LABEL: f7:
; CHECK: blah [[REG1:%r[0-5]]], [[REG2:%r[0-5]]]
; CHECK-DAG: stch [[REG1]], 0(%r2)
; CHECK-DAG: stc [[REG2]], 0(%r3)
; CHECK-DAG: stch [[REG1]], 4096(%r2)
; CHECK-DAG: stcy [[REG2]], 524287(%r3)
; CHECK: br %r14
%res = call { i32, i32 } asm "blah $0, $1", "=h,=r"()
%res1 = extractvalue { i32, i32 } %res, 0
%res2 = extractvalue { i32, i32 } %res, 1
%trunc1 = trunc i32 %res1 to i8
%trunc2 = trunc i32 %res2 to i8
%ptr3 = getelementptr i8 *%ptr1, i64 4096
%ptr4 = getelementptr i8 *%ptr2, i64 524287
store i8 %trunc1, i8 *%ptr1
store i8 %trunc2, i8 *%ptr2
store i8 %trunc1, i8 *%ptr3
store i8 %trunc2, i8 *%ptr4
ret void
}
; Test truncating stores of high and low registers into 16-bit memory.
define void @f8(i16 *%ptr1, i16 *%ptr2) {
; CHECK-LABEL: f8:
; CHECK: blah [[REG1:%r[0-5]]], [[REG2:%r[0-5]]]
; CHECK-DAG: sthh [[REG1]], 0(%r2)
; CHECK-DAG: sth [[REG2]], 0(%r3)
; CHECK-DAG: sthh [[REG1]], 4096(%r2)
; CHECK-DAG: sthy [[REG2]], 524286(%r3)
; CHECK: br %r14
%res = call { i32, i32 } asm "blah $0, $1", "=h,=r"()
%res1 = extractvalue { i32, i32 } %res, 0
%res2 = extractvalue { i32, i32 } %res, 1
%trunc1 = trunc i32 %res1 to i16
%trunc2 = trunc i32 %res2 to i16
%ptr3 = getelementptr i16 *%ptr1, i64 2048
%ptr4 = getelementptr i16 *%ptr2, i64 262143
store i16 %trunc1, i16 *%ptr1
store i16 %trunc2, i16 *%ptr2
store i16 %trunc1, i16 *%ptr3
store i16 %trunc2, i16 *%ptr4
ret void
}
; Test zero extensions from 8 bits between mixtures of high and low registers.
define i32 @f9(i8 %val1, i8 %val2) {
; CHECK-LABEL: f9:
; CHECK-DAG: risbhg [[REG1:%r[0-5]]], %r2, 24, 159, 32
; CHECK-DAG: llcr [[REG2:%r[0-5]]], %r3
; CHECK: stepa [[REG1]], [[REG2]]
; CHECK: risbhg [[REG3:%r[0-5]]], [[REG1]], 24, 159, 0
; CHECK: stepb [[REG3]]
; CHECK: risblg %r2, [[REG3]], 24, 159, 32
; CHECK: br %r14
%ext1 = zext i8 %val1 to i32
%ext2 = zext i8 %val2 to i32
%val3 = call i8 asm sideeffect "stepa $0, $1", "=h,0,r"(i32 %ext1, i32 %ext2)
%ext3 = zext i8 %val3 to i32
%val4 = call i8 asm sideeffect "stepb $0", "=h,0"(i32 %ext3)
%ext4 = zext i8 %val4 to i32
ret i32 %ext4
}
; Test zero extensions from 16 bits between mixtures of high and low registers.
define i32 @f10(i16 %val1, i16 %val2) {
; CHECK-LABEL: f10:
; CHECK-DAG: risbhg [[REG1:%r[0-5]]], %r2, 16, 159, 32
; CHECK-DAG: llhr [[REG2:%r[0-5]]], %r3
; CHECK: stepa [[REG1]], [[REG2]]
; CHECK: risbhg [[REG3:%r[0-5]]], [[REG1]], 16, 159, 0
; CHECK: stepb [[REG3]]
; CHECK: risblg %r2, [[REG3]], 16, 159, 32
; CHECK: br %r14
%ext1 = zext i16 %val1 to i32
%ext2 = zext i16 %val2 to i32
%val3 = call i16 asm sideeffect "stepa $0, $1", "=h,0,r"(i32 %ext1, i32 %ext2)
%ext3 = zext i16 %val3 to i32
%val4 = call i16 asm sideeffect "stepb $0", "=h,0"(i32 %ext3)
%ext4 = zext i16 %val4 to i32
ret i32 %ext4
}
; Test loads of 16-bit constants into mixtures of high and low registers.
define void @f11() {
; CHECK-LABEL: f11:
; CHECK-DAG: iihf [[REG1:%r[0-5]]], 4294934529
; CHECK-DAG: lhi [[REG2:%r[0-5]]], -32768
; CHECK-DAG: llihl [[REG3:%r[0-5]]], 32766
; CHECK-DAG: lhi [[REG4:%r[0-5]]], 32767
; CHECK: blah [[REG1]], [[REG2]], [[REG3]], [[REG4]]
; CHECK: br %r14
call void asm sideeffect "blah $0, $1, $2, $3",
"h,r,h,r"(i32 -32767, i32 -32768,
i32 32766, i32 32767)
ret void
}
; Test loads of unsigned constants into mixtures of high and low registers.
; For stepc, we expect the h and r operands to be paired by the register
; allocator. It doesn't really matter which comes first: LLILL/IIHF would
; be just as good.
define void @f12() {
; CHECK-LABEL: f12:
; CHECK-DAG: llihl [[REG1:%r[0-5]]], 32768
; CHECK-DAG: llihl [[REG2:%r[0-5]]], 65535
; CHECK-DAG: llihh [[REG3:%r[0-5]]], 1
; CHECK-DAG: llihh [[REG4:%r[0-5]]], 65535
; CHECK: stepa [[REG1]], [[REG2]], [[REG3]], [[REG4]]
; CHECK-DAG: llill [[REG1:%r[0-5]]], 32769
; CHECK-DAG: llill [[REG2:%r[0-5]]], 65534
; CHECK-DAG: llilh [[REG3:%r[0-5]]], 2
; CHECK-DAG: llilh [[REG4:%r[0-5]]], 65534
; CHECK: stepb [[REG1]], [[REG2]], [[REG3]], [[REG4]]
; CHECK-DAG: llihl [[REG1:%r[0-5]]], 32770
; CHECK-DAG: iilf [[REG1]], 65533
; CHECK-DAG: llihh [[REG2:%r[0-5]]], 4
; CHECK-DAG: iilf [[REG2]], 524288
; CHECK: stepc [[REG1]], [[REG1]], [[REG2]], [[REG2]]
; CHECK-DAG: iihf [[REG1:%r[0-5]]], 3294967296
; CHECK-DAG: iilf [[REG2:%r[0-5]]], 4294567296
; CHECK-DAG: iihf [[REG3:%r[0-5]]], 1000000000
; CHECK-DAG: iilf [[REG4:%r[0-5]]], 400000
; CHECK: stepd [[REG1]], [[REG2]], [[REG3]], [[REG4]]
; CHECK: br %r14
call void asm sideeffect "stepa $0, $1, $2, $3",
"h,h,h,h"(i32 32768, i32 65535,
i32 65536, i32 -65536)
call void asm sideeffect "stepb $0, $1, $2, $3",
"r,r,r,r"(i32 32769, i32 65534,
i32 131072, i32 -131072)
call void asm sideeffect "stepc $0, $1, $2, $3",
"h,r,h,r"(i32 32770, i32 65533,
i32 262144, i32 524288)
call void asm sideeffect "stepd $0, $1, $2, $3",
"h,r,h,r"(i32 -1000000000, i32 -400000,
i32 1000000000, i32 400000)
ret void
}
; Test selects involving high registers.
define void @f13(i32 %x, i32 %y) {
; CHECK-LABEL: f13:
; CHECK: llihl [[REG:%r[0-5]]], 0
; CHECK: cije %r2, 0
; CHECK: iihf [[REG]], 2102030405
; CHECK: blah [[REG]]
; CHECK: br %r14
%cmp = icmp eq i32 %x, 0
%val = select i1 %cmp, i32 0, i32 2102030405
call void asm sideeffect "blah $0", "h"(i32 %val)
ret void
}
; Test selects involving low registers.
define void @f14(i32 %x, i32 %y) {
; CHECK-LABEL: f14:
; CHECK: lhi [[REG:%r[0-5]]], 0
; CHECK: cije %r2, 0
; CHECK: iilf [[REG]], 2102030405
; CHECK: blah [[REG]]
; CHECK: br %r14
%cmp = icmp eq i32 %x, 0
%val = select i1 %cmp, i32 0, i32 2102030405
call void asm sideeffect "blah $0", "r"(i32 %val)
ret void
}
; Test immediate insertion involving high registers.
define void @f15() {
; CHECK-LABEL: f15:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: iihh [[REG]], 4660
; CHECK: stepb [[REG]]
; CHECK: iihl [[REG]], 34661
; CHECK: stepc [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%and1 = and i32 %res1, 65535
%or1 = or i32 %and1, 305397760
%res2 = call i32 asm "stepb $0, $1", "=h,h"(i32 %or1)
%and2 = and i32 %res2, -65536
%or2 = or i32 %and2, 34661
call void asm sideeffect "stepc $0", "h"(i32 %or2)
ret void
}
; Test immediate insertion involving low registers.
define void @f16() {
; CHECK-LABEL: f16:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: iilh [[REG]], 4660
; CHECK: stepb [[REG]]
; CHECK: iill [[REG]], 34661
; CHECK: stepc [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%and1 = and i32 %res1, 65535
%or1 = or i32 %and1, 305397760
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %or1)
%and2 = and i32 %res2, -65536
%or2 = or i32 %and2, 34661
call void asm sideeffect "stepc $0", "r"(i32 %or2)
ret void
}
; Test immediate OR involving high registers.
define void @f17() {
; CHECK-LABEL: f17:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: oihh [[REG]], 4660
; CHECK: stepb [[REG]]
; CHECK: oihl [[REG]], 34661
; CHECK: stepc [[REG]]
; CHECK: oihf [[REG]], 12345678
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%or1 = or i32 %res1, 305397760
%res2 = call i32 asm "stepb $0, $1", "=h,h"(i32 %or1)
%or2 = or i32 %res2, 34661
%res3 = call i32 asm "stepc $0, $1", "=h,h"(i32 %or2)
%or3 = or i32 %res3, 12345678
call void asm sideeffect "stepd $0", "h"(i32 %or3)
ret void
}
; Test immediate OR involving low registers.
define void @f18() {
; CHECK-LABEL: f18:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: oilh [[REG]], 4660
; CHECK: stepb [[REG]]
; CHECK: oill [[REG]], 34661
; CHECK: stepc [[REG]]
; CHECK: oilf [[REG]], 12345678
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%or1 = or i32 %res1, 305397760
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %or1)
%or2 = or i32 %res2, 34661
%res3 = call i32 asm "stepc $0, $1", "=r,r"(i32 %or2)
%or3 = or i32 %res3, 12345678
call void asm sideeffect "stepd $0", "r"(i32 %or3)
ret void
}
; Test immediate XOR involving high registers.
define void @f19() {
; CHECK-LABEL: f19:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: xihf [[REG]], 305397760
; CHECK: stepb [[REG]]
; CHECK: xihf [[REG]], 34661
; CHECK: stepc [[REG]]
; CHECK: xihf [[REG]], 12345678
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%xor1 = xor i32 %res1, 305397760
%res2 = call i32 asm "stepb $0, $1", "=h,h"(i32 %xor1)
%xor2 = xor i32 %res2, 34661
%res3 = call i32 asm "stepc $0, $1", "=h,h"(i32 %xor2)
%xor3 = xor i32 %res3, 12345678
call void asm sideeffect "stepd $0", "h"(i32 %xor3)
ret void
}
; Test immediate XOR involving low registers.
define void @f20() {
; CHECK-LABEL: f20:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: xilf [[REG]], 305397760
; CHECK: stepb [[REG]]
; CHECK: xilf [[REG]], 34661
; CHECK: stepc [[REG]]
; CHECK: xilf [[REG]], 12345678
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%xor1 = xor i32 %res1, 305397760
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %xor1)
%xor2 = xor i32 %res2, 34661
%res3 = call i32 asm "stepc $0, $1", "=r,r"(i32 %xor2)
%xor3 = xor i32 %res3, 12345678
call void asm sideeffect "stepd $0", "r"(i32 %xor3)
ret void
}
; Test two-operand immediate AND involving high registers.
define void @f21() {
; CHECK-LABEL: f21:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: nihh [[REG]], 4096
; CHECK: stepb [[REG]]
; CHECK: nihl [[REG]], 57536
; CHECK: stepc [[REG]]
; CHECK: nihf [[REG]], 12345678
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%and1 = and i32 %res1, 268500991
%res2 = call i32 asm "stepb $0, $1", "=h,h"(i32 %and1)
%and2 = and i32 %res2, -8000
%res3 = call i32 asm "stepc $0, $1", "=h,h"(i32 %and2)
%and3 = and i32 %res3, 12345678
call void asm sideeffect "stepd $0", "h"(i32 %and3)
ret void
}
; Test two-operand immediate AND involving low registers.
define void @f22() {
; CHECK-LABEL: f22:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: nilh [[REG]], 4096
; CHECK: stepb [[REG]]
; CHECK: nill [[REG]], 57536
; CHECK: stepc [[REG]]
; CHECK: nilf [[REG]], 12345678
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%and1 = and i32 %res1, 268500991
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %and1)
%and2 = and i32 %res2, -8000
%res3 = call i32 asm "stepc $0, $1", "=r,r"(i32 %and2)
%and3 = and i32 %res3, 12345678
call void asm sideeffect "stepd $0", "r"(i32 %and3)
ret void
}
; Test three-operand immediate AND involving mixtures of low and high registers.
define i32 @f23(i32 %old) {
; CHECK-LABEL: f23:
; CHECK-DAG: risblg [[REG1:%r[0-5]]], %r2, 28, 158, 0
; CHECK-DAG: risbhg [[REG2:%r[0-5]]], %r2, 24, 158, 32
; CHECK: stepa %r2, [[REG1]], [[REG2]]
; CHECK-DAG: risbhg [[REG3:%r[0-5]]], [[REG2]], 25, 159, 0
; CHECK-DAG: risblg %r2, [[REG2]], 24, 152, 32
; CHECK: stepb [[REG2]], [[REG3]], %r2
; CHECK: br %r14
%and1 = and i32 %old, 14
%and2 = and i32 %old, 254
%res1 = call i32 asm "stepa $1, $2, $3",
"=h,r,r,0"(i32 %old, i32 %and1, i32 %and2)
%and3 = and i32 %res1, 127
%and4 = and i32 %res1, 128
%res2 = call i32 asm "stepb $1, $2, $3",
"=r,h,h,0"(i32 %res1, i32 %and3, i32 %and4)
ret i32 %res2
}
; Test RISB[LH]G insertions involving mixtures of high and low registers.
define i32 @f24(i32 %old) {
; CHECK-LABEL: f24:
; CHECK-DAG: risblg [[REG1:%r[0-5]]], %r2, 28, 158, 1
; CHECK-DAG: risbhg [[REG2:%r[0-5]]], %r2, 24, 158, 29
; CHECK: stepa %r2, [[REG1]], [[REG2]]
; CHECK-DAG: risbhg [[REG3:%r[0-5]]], [[REG2]], 25, 159, 62
; CHECK-DAG: risblg %r2, [[REG2]], 24, 152, 37
; CHECK: stepb [[REG2]], [[REG3]], %r2
; CHECK: br %r14
%shift1 = shl i32 %old, 1
%and1 = and i32 %shift1, 14
%shift2 = lshr i32 %old, 3
%and2 = and i32 %shift2, 254
%res1 = call i32 asm "stepa $1, $2, $3",
"=h,r,r,0"(i32 %old, i32 %and1, i32 %and2)
%shift3 = lshr i32 %res1, 2
%and3 = and i32 %shift3, 127
%shift4 = shl i32 %res1, 5
%and4 = and i32 %shift4, 128
%res2 = call i32 asm "stepb $1, $2, $3",
"=r,h,h,0"(i32 %res1, i32 %and3, i32 %and4)
ret i32 %res2
}
; Test TMxx involving mixtures of high and low registers.
define i32 @f25(i32 %old) {
; CHECK-LABEL: f25:
; CHECK-DAG: tmll %r2, 1
; CHECK-DAG: tmlh %r2, 1
; CHECK: stepa [[REG1:%r[0-5]]],
; CHECK-DAG: tmhl [[REG1]], 1
; CHECK-DAG: tmhh [[REG1]], 1
; CHECK: stepb %r2,
; CHECK: br %r14
%and1 = and i32 %old, 1
%and2 = and i32 %old, 65536
%cmp1 = icmp eq i32 %and1, 0
%cmp2 = icmp eq i32 %and2, 0
%sel1 = select i1 %cmp1, i32 100, i32 200
%sel2 = select i1 %cmp2, i32 100, i32 200
%res1 = call i32 asm "stepa $0, $1, $2",
"=h,r,r"(i32 %sel1, i32 %sel2)
%and3 = and i32 %res1, 1
%and4 = and i32 %res1, 65536
%cmp3 = icmp eq i32 %and3, 0
%cmp4 = icmp eq i32 %and4, 0
%sel3 = select i1 %cmp3, i32 100, i32 200
%sel4 = select i1 %cmp4, i32 100, i32 200
%res2 = call i32 asm "stepb $0, $1, $2",
"=r,h,h"(i32 %sel3, i32 %sel4)
ret i32 %res2
}
; Test two-operand halfword immediate addition involving high registers.
define void @f26() {
; CHECK-LABEL: f26:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: aih [[REG]], -32768
; CHECK: stepb [[REG]]
; CHECK: aih [[REG]], 1
; CHECK: stepc [[REG]]
; CHECK: aih [[REG]], 32767
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%add1 = add i32 %res1, -32768
%res2 = call i32 asm "stepb $0, $1", "=h,h"(i32 %add1)
%add2 = add i32 %res2, 1
%res3 = call i32 asm "stepc $0, $1", "=h,h"(i32 %add2)
%add3 = add i32 %res3, 32767
call void asm sideeffect "stepd $0", "h"(i32 %add3)
ret void
}
; Test two-operand halfword immediate addition involving low registers.
define void @f27() {
; CHECK-LABEL: f27:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: ahi [[REG]], -32768
; CHECK: stepb [[REG]]
; CHECK: ahi [[REG]], 1
; CHECK: stepc [[REG]]
; CHECK: ahi [[REG]], 32767
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%add1 = add i32 %res1, -32768
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %add1)
%add2 = add i32 %res2, 1
%res3 = call i32 asm "stepc $0, $1", "=r,r"(i32 %add2)
%add3 = add i32 %res3, 32767
call void asm sideeffect "stepd $0", "r"(i32 %add3)
ret void
}
; Test three-operand halfword immediate addition involving mixtures of low
; and high registers. RISBHG/AIH would be OK too, instead of AHIK/RISBHG.
define i32 @f28(i32 %old) {
; CHECK-LABEL: f28:
; CHECK: ahik [[REG1:%r[0-5]]], %r2, 14
; CHECK: stepa %r2, [[REG1]]
; CHECK: ahik [[TMP:%r[0-5]]], [[REG1]], 254
; CHECK: risbhg [[REG2:%r[0-5]]], [[TMP]], 0, 159, 32
; CHECK: stepb [[REG1]], [[REG2]]
; CHECK: risbhg [[REG3:%r[0-5]]], [[REG2]], 0, 159, 0
; CHECK: aih [[REG3]], 127
; CHECK: stepc [[REG2]], [[REG3]]
; CHECK: risblg %r2, [[REG3]], 0, 159, 32
; CHECK: ahi %r2, 128
; CHECK: stepd [[REG3]], %r2
; CHECK: br %r14
%add1 = add i32 %old, 14
%res1 = call i32 asm "stepa $1, $2",
"=r,r,0"(i32 %old, i32 %add1)
%add2 = add i32 %res1, 254
%res2 = call i32 asm "stepb $1, $2",
"=h,r,0"(i32 %res1, i32 %add2)
%add3 = add i32 %res2, 127
%res3 = call i32 asm "stepc $1, $2",
"=h,h,0"(i32 %res2, i32 %add3)
%add4 = add i32 %res3, 128
%res4 = call i32 asm "stepd $1, $2",
"=r,h,0"(i32 %res3, i32 %add4)
ret i32 %res4
}
; Test large immediate addition involving high registers.
define void @f29() {
; CHECK-LABEL: f29:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: aih [[REG]], -32769
; CHECK: stepb [[REG]]
; CHECK: aih [[REG]], 32768
; CHECK: stepc [[REG]]
; CHECK: aih [[REG]], 1000000000
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%add1 = add i32 %res1, -32769
%res2 = call i32 asm "stepb $0, $1", "=h,h"(i32 %add1)
%add2 = add i32 %res2, 32768
%res3 = call i32 asm "stepc $0, $1", "=h,h"(i32 %add2)
%add3 = add i32 %res3, 1000000000
call void asm sideeffect "stepd $0", "h"(i32 %add3)
ret void
}
; Test large immediate addition involving low registers.
define void @f30() {
; CHECK-LABEL: f30:
; CHECK: stepa [[REG:%r[0-5]]]
; CHECK: afi [[REG]], -32769
; CHECK: stepb [[REG]]
; CHECK: afi [[REG]], 32768
; CHECK: stepc [[REG]]
; CHECK: afi [[REG]], 1000000000
; CHECK: stepd [[REG]]
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%add1 = add i32 %res1, -32769
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %add1)
%add2 = add i32 %res2, 32768
%res3 = call i32 asm "stepc $0, $1", "=r,r"(i32 %add2)
%add3 = add i32 %res3, 1000000000
call void asm sideeffect "stepd $0", "r"(i32 %add3)
ret void
}
; Test large immediate comparison involving high registers.
define i32 @f31() {
; CHECK-LABEL: f31:
; CHECK: stepa [[REG1:%r[0-5]]]
; CHECK: cih [[REG1]], 1000000000
; CHECK: stepb [[REG2:%r[0-5]]]
; CHECK: clih [[REG2]], 1000000000
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%cmp1 = icmp sle i32 %res1, 1000000000
%sel1 = select i1 %cmp1, i32 0, i32 1
%res2 = call i32 asm "stepb $0, $1", "=h,r"(i32 %sel1)
%cmp2 = icmp ule i32 %res2, 1000000000
%sel2 = select i1 %cmp2, i32 0, i32 1
ret i32 %sel2
}
; Test large immediate comparison involving low registers.
define i32 @f32() {
; CHECK-LABEL: f32:
; CHECK: stepa [[REG1:%r[0-5]]]
; CHECK: cfi [[REG1]], 1000000000
; CHECK: stepb [[REG2:%r[0-5]]]
; CHECK: clfi [[REG2]], 1000000000
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%cmp1 = icmp sle i32 %res1, 1000000000
%sel1 = select i1 %cmp1, i32 0, i32 1
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %sel1)
%cmp2 = icmp ule i32 %res2, 1000000000
%sel2 = select i1 %cmp2, i32 0, i32 1
ret i32 %sel2
}
; Test memory comparison involving high registers.
define void @f33(i32 *%ptr1, i32 *%ptr2) {
; CHECK-LABEL: f33:
; CHECK: stepa [[REG1:%r[0-5]]]
; CHECK: chf [[REG1]], 0(%r2)
; CHECK: stepb [[REG2:%r[0-5]]]
; CHECK: clhf [[REG2]], 0(%r3)
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=h"()
%load1 = load i32 *%ptr1
%cmp1 = icmp sle i32 %res1, %load1
%sel1 = select i1 %cmp1, i32 0, i32 1
%res2 = call i32 asm "stepb $0, $1", "=h,r"(i32 %sel1)
%load2 = load i32 *%ptr2
%cmp2 = icmp ule i32 %res2, %load2
%sel2 = select i1 %cmp2, i32 0, i32 1
store i32 %sel2, i32 *%ptr1
ret void
}
; Test memory comparison involving low registers.
define void @f34(i32 *%ptr1, i32 *%ptr2) {
; CHECK-LABEL: f34:
; CHECK: stepa [[REG1:%r[0-5]]]
; CHECK: c [[REG1]], 0(%r2)
; CHECK: stepb [[REG2:%r[0-5]]]
; CHECK: cl [[REG2]], 0(%r3)
; CHECK: br %r14
%res1 = call i32 asm "stepa $0", "=r"()
%load1 = load i32 *%ptr1
%cmp1 = icmp sle i32 %res1, %load1
%sel1 = select i1 %cmp1, i32 0, i32 1
%res2 = call i32 asm "stepb $0, $1", "=r,r"(i32 %sel1)
%load2 = load i32 *%ptr2
%cmp2 = icmp ule i32 %res2, %load2
%sel2 = select i1 %cmp2, i32 0, i32 1
store i32 %sel2, i32 *%ptr1
ret void
}
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